Re: [PATCH] staging: rtl8712: remove _malloc()

From: Andy Shevchenko
Date: Mon Jun 02 2014 - 09:54:55 EST

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On Sat, 2014-05-24 at 18:19 +1000, Vitaly Osipov wrote:
> This patch removes all usage of _malloc() and the function itself. Most
> uses are straightforward replacements by kmalloc(..., GFP_ATOMIC),
> because this was the definition of _malloc(). In a few places it
> was possible to use kzalloc() or memdup_user.
>
> A further improvement would be to replace GFP_ATOMIC with GFP_KERNEL
> where possible.

I don't know if it's okay to do

v = ... sizeof(struct type_of_v) -> sizeof(*v)

along with these changes.

And in one or couple of places you may use kcalloc(x, y) instead of
kmalloc(x * y).

>
> Verified by compilation only.
>
> Initial replacement done by running a Coccinelle script along the lines
> of:
>
> @@
> type T;
> expression E;
> identifier V;
> @@
> - V = (T) _malloc(E);
> + V = kmalloc(E, GFP_ATOMIC);
>
> @@
> expression E, E1;
> @@
> - E1 = _malloc(E);
> + E1 = kmalloc(E, GFP_ATOMIC);
>
> Signed-off-by: Vitaly Osipov <vitaly.osipov@xxxxxxxxx>
> ---
> drivers/staging/rtl8712/hal_init.c | 2 +-
> drivers/staging/rtl8712/mlme_linux.c | 3 +-
> drivers/staging/rtl8712/osdep_service.h | 5 --
> drivers/staging/rtl8712/rtl8712_recv.c | 6 +-
> drivers/staging/rtl8712/rtl871x_cmd.c | 123 +++++++++++---------------
> drivers/staging/rtl8712/rtl871x_io.c | 11 +--
> drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 35 +++-----
> drivers/staging/rtl8712/rtl871x_mlme.c | 17 ++--
> drivers/staging/rtl8712/rtl871x_mp.c | 10 +--
> drivers/staging/rtl8712/rtl871x_recv.c | 6 +-
> drivers/staging/rtl8712/rtl871x_sta_mgt.c | 4 +-
> drivers/staging/rtl8712/rtl871x_xmit.c | 16 ++--
> drivers/staging/rtl8712/usb_ops_linux.c | 2 +-
> 13 files changed, 102 insertions(+), 138 deletions(-)
>
> diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
> index d801c5a..36de7e4 100644
> --- a/drivers/staging/rtl8712/hal_init.c
> +++ b/drivers/staging/rtl8712/hal_init.c
> @@ -183,7 +183,7 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter)
> maxlen = (fwhdr.img_IMEM_size > fwhdr.img_SRAM_size) ?
> fwhdr.img_IMEM_size : fwhdr.img_SRAM_size;
> maxlen += txdscp_sz;
> - ptmpchar = _malloc(maxlen + FWBUFF_ALIGN_SZ);
> + ptmpchar = kmalloc(maxlen + FWBUFF_ALIGN_SZ, GFP_ATOMIC);
> if (ptmpchar == NULL)
> return ret;
>
> diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c
> index f569a70..377efb8 100644
> --- a/drivers/staging/rtl8712/mlme_linux.c
> +++ b/drivers/staging/rtl8712/mlme_linux.c
> @@ -147,10 +147,9 @@ void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie)
>
> buff = NULL;
> if (authmode == _WPA_IE_ID_) {
> - buff = _malloc(IW_CUSTOM_MAX);
> + buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
> if (buff == NULL)
> return;
> - memset(buff, 0, IW_CUSTOM_MAX);
> p = buff;
> p += sprintf(p, "ASSOCINFO(ReqIEs=");
> len = sec_ie[1] + 2;
> diff --git a/drivers/staging/rtl8712/osdep_service.h b/drivers/staging/rtl8712/osdep_service.h
> index 566235a..09e1561 100644
> --- a/drivers/staging/rtl8712/osdep_service.h
> +++ b/drivers/staging/rtl8712/osdep_service.h
> @@ -168,11 +168,6 @@ static inline void sleep_schedulable(int ms)
> return;
> }
>
> -static inline u8 *_malloc(u32 sz)
> -{
> - return kmalloc(sz, GFP_ATOMIC);
> -}
> -
> static inline unsigned char _cancel_timer_ex(struct timer_list *ptimer)
> {
> return del_timer(ptimer);
> diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
> index 667398a..1f70017 100644
> --- a/drivers/staging/rtl8712/rtl8712_recv.c
> +++ b/drivers/staging/rtl8712/rtl8712_recv.c
> @@ -58,12 +58,10 @@ int r8712_init_recv_priv(struct recv_priv *precvpriv, struct _adapter *padapter)
>
> /*init recv_buf*/
> _init_queue(&precvpriv->free_recv_buf_queue);
> - precvpriv->pallocated_recv_buf = _malloc(NR_RECVBUFF *
> - sizeof(struct recv_buf) + 4);
> + precvpriv->pallocated_recv_buf = kzalloc(NR_RECVBUFF * sizeof(struct recv_buf) + 4,
> + GFP_ATOMIC);
> if (precvpriv->pallocated_recv_buf == NULL)
> return _FAIL;
> - memset(precvpriv->pallocated_recv_buf, 0, NR_RECVBUFF *
> - sizeof(struct recv_buf) + 4);
> precvpriv->precv_buf = precvpriv->pallocated_recv_buf + 4 -
> ((addr_t) (precvpriv->pallocated_recv_buf) & 3);
> precvbuf = (struct recv_buf *)precvpriv->precv_buf;
> diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c
> index a67185d..6a3cecc 100644
> --- a/drivers/staging/rtl8712/rtl871x_cmd.c
> +++ b/drivers/staging/rtl8712/rtl871x_cmd.c
> @@ -64,13 +64,14 @@ static sint _init_cmd_priv(struct cmd_priv *pcmdpriv)
>
> /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
> pcmdpriv->cmd_seq = 1;
> - pcmdpriv->cmd_allocated_buf = _malloc(MAX_CMDSZ + CMDBUFF_ALIGN_SZ);
> + pcmdpriv->cmd_allocated_buf = kmalloc(MAX_CMDSZ + CMDBUFF_ALIGN_SZ,
> + GFP_ATOMIC);
> if (pcmdpriv->cmd_allocated_buf == NULL)
> return _FAIL;
> pcmdpriv->cmd_buf = pcmdpriv->cmd_allocated_buf + CMDBUFF_ALIGN_SZ -
> ((addr_t)(pcmdpriv->cmd_allocated_buf) &
> (CMDBUFF_ALIGN_SZ-1));
> - pcmdpriv->rsp_allocated_buf = _malloc(MAX_RSPSZ + 4);
> + pcmdpriv->rsp_allocated_buf = kmalloc(MAX_RSPSZ + 4, GFP_ATOMIC);
> if (pcmdpriv->rsp_allocated_buf == NULL)
> return _FAIL;
> pcmdpriv->rsp_buf = pcmdpriv->rsp_allocated_buf + 4 -
> @@ -85,7 +86,7 @@ static sint _init_evt_priv(struct evt_priv *pevtpriv)
> {
> /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
> pevtpriv->event_seq = 0;
> - pevtpriv->evt_allocated_buf = _malloc(MAX_EVTSZ + 4);
> + pevtpriv->evt_allocated_buf = kmalloc(MAX_EVTSZ + 4, GFP_ATOMIC);
>
> if (pevtpriv->evt_allocated_buf == NULL)
> return _FAIL;
> @@ -226,11 +227,10 @@ u8 r8712_sitesurvey_cmd(struct _adapter *padapter,
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
> struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psurveyPara = (struct sitesurvey_parm *)_malloc(
> - sizeof(struct sitesurvey_parm));
> + psurveyPara = kmalloc(sizeof(struct sitesurvey_parm), GFP_ATOMIC);
> if (psurveyPara == NULL) {
> kfree((unsigned char *) ph2c);
> return _FAIL;
> @@ -259,11 +259,11 @@ u8 r8712_setdatarate_cmd(struct _adapter *padapter, u8 *rateset)
> struct setdatarate_parm *pbsetdataratepara;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pbsetdataratepara = (struct setdatarate_parm *)_malloc(
> - sizeof(struct setdatarate_parm));
> + pbsetdataratepara = kmalloc(sizeof(struct setdatarate_parm),
> + GFP_ATOMIC);
> if (pbsetdataratepara == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -282,11 +282,11 @@ u8 r8712_set_chplan_cmd(struct _adapter *padapter, int chplan)
> struct SetChannelPlan_param *psetchplanpara;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetchplanpara = (struct SetChannelPlan_param *)
> - _malloc(sizeof(struct SetChannelPlan_param));
> + psetchplanpara = kmalloc(sizeof(struct SetChannelPlan_param),
> + GFP_ATOMIC);
> if (psetchplanpara == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -304,11 +304,11 @@ u8 r8712_setbasicrate_cmd(struct _adapter *padapter, u8 *rateset)
> struct setbasicrate_parm *pssetbasicratepara;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pssetbasicratepara = (struct setbasicrate_parm *)_malloc(
> - sizeof(struct setbasicrate_parm));
> + pssetbasicratepara = kmalloc(sizeof(struct setbasicrate_parm),
> + GFP_ATOMIC);
> if (pssetbasicratepara == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -327,11 +327,10 @@ u8 r8712_setptm_cmd(struct _adapter *padapter, u8 type)
> struct writePTM_parm *pwriteptmparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pwriteptmparm = (struct writePTM_parm *)
> - _malloc(sizeof(struct writePTM_parm));
> + pwriteptmparm = kmalloc(sizeof(struct writePTM_parm), GFP_ATOMIC);
> if (pwriteptmparm == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -348,11 +347,10 @@ u8 r8712_setfwdig_cmd(struct _adapter *padapter, u8 type)
> struct writePTM_parm *pwriteptmparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pwriteptmparm = (struct writePTM_parm *)
> - _malloc(sizeof(struct setdig_parm));
> + pwriteptmparm = kmalloc(sizeof(struct setdig_parm), GFP_ATOMIC);
> if (pwriteptmparm == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -369,11 +367,10 @@ u8 r8712_setfwra_cmd(struct _adapter *padapter, u8 type)
> struct writePTM_parm *pwriteptmparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pwriteptmparm = (struct writePTM_parm *)
> - _malloc(sizeof(struct setra_parm));
> + pwriteptmparm = kmalloc(sizeof(struct setra_parm), GFP_ATOMIC);
> if (pwriteptmparm == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -390,11 +387,10 @@ u8 r8712_setrfreg_cmd(struct _adapter *padapter, u8 offset, u32 val)
> struct writeRF_parm *pwriterfparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pwriterfparm = (struct writeRF_parm *)_malloc(
> - sizeof(struct writeRF_parm));
> + pwriterfparm = kmalloc(sizeof(struct writeRF_parm), GFP_ATOMIC);
> if (pwriterfparm == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -412,10 +408,10 @@ u8 r8712_getrfreg_cmd(struct _adapter *padapter, u8 offset, u8 *pval)
> struct readRF_parm *prdrfparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - prdrfparm = (struct readRF_parm *)_malloc(sizeof(struct readRF_parm));
> + prdrfparm = kmalloc(sizeof(struct readRF_parm), GFP_ATOMIC);
> if (prdrfparm == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -456,7 +452,7 @@ u8 r8712_createbss_cmd(struct _adapter *padapter)
> &padapter->registrypriv.dev_network;
>
> padapter->ledpriv.LedControlHandler(padapter, LED_CTL_START_TO_LINK);
> - pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + pcmd = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (pcmd == NULL)
> return _FAIL;
> _init_listhead(&pcmd->list);
> @@ -490,7 +486,7 @@ u8 r8712_joinbss_cmd(struct _adapter *padapter, struct wlan_network *pnetwork)
> network.InfrastructureMode;
>
> padapter->ledpriv.LedControlHandler(padapter, LED_CTL_START_TO_LINK);
> - pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + pcmd = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (pcmd == NULL)
> return _FAIL;
> t_len = sizeof(u32) + 6 * sizeof(unsigned char) + 2 +
> @@ -628,11 +624,10 @@ u8 r8712_disassoc_cmd(struct _adapter *padapter) /* for sta_mode */
> struct disconnect_parm *pdisconnect;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - pdisconnect_cmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + pdisconnect_cmd = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (pdisconnect_cmd == NULL)
> return _FAIL;
> - pdisconnect = (struct disconnect_parm *)_malloc(
> - sizeof(struct disconnect_parm));
> + pdisconnect = kmalloc(sizeof(struct disconnect_parm), GFP_ATOMIC);
> if (pdisconnect == NULL) {
> kfree((u8 *)pdisconnect_cmd);
> return _FAIL;
> @@ -651,11 +646,10 @@ u8 r8712_setopmode_cmd(struct _adapter *padapter,
>
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetop = (struct setopmode_parm *)_malloc(
> - sizeof(struct setopmode_parm));
> + psetop = kmalloc(sizeof(struct setopmode_parm), GFP_ATOMIC);
> if (psetop == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -676,17 +670,15 @@ u8 r8712_setstakey_cmd(struct _adapter *padapter, u8 *psta, u8 unicast_key)
> struct security_priv *psecuritypriv = &padapter->securitypriv;
> struct sta_info *sta = (struct sta_info *)psta;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetstakey_para = (struct set_stakey_parm *)_malloc(
> - sizeof(struct set_stakey_parm));
> + psetstakey_para = kmalloc(sizeof(struct set_stakey_parm), GFP_ATOMIC);
> if (psetstakey_para == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> }
> - psetstakey_rsp = (struct set_stakey_rsp *)_malloc(
> - sizeof(struct set_stakey_rsp));
> + psetstakey_rsp = kmalloc(sizeof(struct set_stakey_rsp), GFP_ATOMIC);
> if (psetstakey_rsp == NULL) {
> kfree((u8 *) ph2c);
> kfree((u8 *) psetstakey_para);
> @@ -718,11 +710,10 @@ u8 r8712_setrfintfs_cmd(struct _adapter *padapter, u8 mode)
> struct setrfintfs_parm *psetrfintfsparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetrfintfsparm = (struct setrfintfs_parm *)_malloc(
> - sizeof(struct setrfintfs_parm));
> + psetrfintfsparm = kmalloc(sizeof(struct setrfintfs_parm), GFP_ATOMIC);
> if (psetrfintfsparm == NULL) {
> kfree((unsigned char *) ph2c);
> return _FAIL;
> @@ -741,11 +732,10 @@ u8 r8712_setrttbl_cmd(struct _adapter *padapter,
> struct setratable_parm *psetrttblparm;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetrttblparm = (struct setratable_parm *)_malloc(
> - sizeof(struct setratable_parm));
> + psetrttblparm = kmalloc(sizeof(struct setratable_parm), GFP_ATOMIC);
> if (psetrttblparm == NULL) {
> kfree((unsigned char *)ph2c);
> return _FAIL;
> @@ -763,11 +753,10 @@ u8 r8712_gettssi_cmd(struct _adapter *padapter, u8 offset, u8 *pval)
> struct cmd_obj *ph2c;
> struct readTSSI_parm *prdtssiparm;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - prdtssiparm = (struct readTSSI_parm *)
> - _malloc(sizeof(struct readTSSI_parm));
> + prdtssiparm = kmalloc(sizeof(struct readTSSI_parm), GFP_ATOMIC);
> if (prdtssiparm == NULL) {
> kfree((unsigned char *) ph2c);
> return _FAIL;
> @@ -790,11 +779,11 @@ u8 r8712_setMacAddr_cmd(struct _adapter *padapter, u8 *mac_addr)
> struct cmd_obj *ph2c;
> struct SetMacAddr_param *psetMacAddr_para;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetMacAddr_para = (struct SetMacAddr_param *)_malloc(
> - sizeof(struct SetMacAddr_param));
> + psetMacAddr_para = kmalloc(sizeof(struct SetMacAddr_param),
> + GFP_ATOMIC);
> if (psetMacAddr_para == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> @@ -813,17 +802,17 @@ u8 r8712_setassocsta_cmd(struct _adapter *padapter, u8 *mac_addr)
> struct set_assocsta_parm *psetassocsta_para;
> struct set_assocsta_rsp *psetassocsta_rsp = NULL;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - psetassocsta_para = (struct set_assocsta_parm *)
> - _malloc(sizeof(struct set_assocsta_parm));
> + psetassocsta_para = kmalloc(sizeof(struct set_assocsta_parm),
> + GFP_ATOMIC);
> if (psetassocsta_para == NULL) {
> kfree((u8 *) ph2c);
> return _FAIL;
> }
> - psetassocsta_rsp = (struct set_assocsta_rsp *)_malloc(
> - sizeof(struct set_assocsta_rsp));
> + psetassocsta_rsp = kmalloc(sizeof(struct set_assocsta_rsp),
> + GFP_ATOMIC);
> if (psetassocsta_rsp == NULL) {
> kfree((u8 *)ph2c);
> kfree((u8 *)psetassocsta_para);
> @@ -843,11 +832,10 @@ u8 r8712_addbareq_cmd(struct _adapter *padapter, u8 tid)
> struct cmd_obj *ph2c;
> struct addBaReq_parm *paddbareq_parm;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - paddbareq_parm = (struct addBaReq_parm *)_malloc(
> - sizeof(struct addBaReq_parm));
> + paddbareq_parm = kmalloc(sizeof(struct addBaReq_parm), GFP_ATOMIC);
> if (paddbareq_parm == NULL) {
> kfree((unsigned char *)ph2c);
> return _FAIL;
> @@ -865,11 +853,10 @@ u8 r8712_wdg_wk_cmd(struct _adapter *padapter)
> struct drvint_cmd_parm *pdrvintcmd_param;
> struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - pdrvintcmd_param = (struct drvint_cmd_parm *)_malloc(
> - sizeof(struct drvint_cmd_parm));
> + pdrvintcmd_param = kmalloc(sizeof(struct drvint_cmd_parm), GFP_ATOMIC);
> if (pdrvintcmd_param == NULL) {
> kfree((unsigned char *)ph2c);
> return _FAIL;
> @@ -1040,16 +1027,14 @@ u8 r8712_disconnectCtrlEx_cmd(struct _adapter *adapter, u32 enableDrvCtrl,
> struct DisconnectCtrlEx_param *param;
> struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
>
> - ph2c = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + ph2c = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (ph2c == NULL)
> return _FAIL;
> - param = (struct DisconnectCtrlEx_param *)
> - _malloc(sizeof(struct DisconnectCtrlEx_param));
> + param = kzalloc(sizeof(struct DisconnectCtrlEx_param), GFP_ATOMIC);
> if (param == NULL) {
> kfree((unsigned char *) ph2c);
> return _FAIL;
> }
> - memset(param, 0, sizeof(struct DisconnectCtrlEx_param));
>
> param->EnableDrvCtrl = (unsigned char)enableDrvCtrl;
> param->TryPktCnt = (unsigned char)tryPktCnt;
> diff --git a/drivers/staging/rtl8712/rtl871x_io.c b/drivers/staging/rtl8712/rtl871x_io.c
> index abc1c97..37a841a 100644
> --- a/drivers/staging/rtl8712/rtl871x_io.c
> +++ b/drivers/staging/rtl8712/rtl871x_io.c
> @@ -60,8 +60,8 @@ static uint _init_intf_hdl(struct _adapter *padapter,
> set_intf_funs = &(r8712_usb_set_intf_funs);
> set_intf_ops = &r8712_usb_set_intf_ops;
> init_intf_priv = &r8712_usb_init_intf_priv;
> - pintf_priv = pintf_hdl->pintfpriv = (struct intf_priv *)
> - _malloc(sizeof(struct intf_priv));
> + pintf_priv = pintf_hdl->pintfpriv = kmalloc(sizeof(struct intf_priv),
> + GFP_ATOMIC);
> if (pintf_priv == NULL)
> goto _init_intf_hdl_fail;
> pintf_hdl->adapter = (u8 *)padapter;
> @@ -112,15 +112,16 @@ uint r8712_alloc_io_queue(struct _adapter *adapter)
> struct io_queue *pio_queue;
> struct io_req *pio_req;
>
> - pio_queue = (struct io_queue *)_malloc(sizeof(struct io_queue));
> + pio_queue = kmalloc(sizeof(struct io_queue), GFP_ATOMIC);
> if (pio_queue == NULL)
> goto alloc_io_queue_fail;
> _init_listhead(&pio_queue->free_ioreqs);
> _init_listhead(&pio_queue->processing);
> _init_listhead(&pio_queue->pending);
> spin_lock_init(&pio_queue->lock);
> - pio_queue->pallocated_free_ioreqs_buf = (u8 *)_malloc(NUM_IOREQ *
> - (sizeof(struct io_req)) + 4);
> + pio_queue->pallocated_free_ioreqs_buf = kmalloc(NUM_IOREQ *
> + (sizeof(struct io_req)) + 4,
> + GFP_ATOMIC);
> if ((pio_queue->pallocated_free_ioreqs_buf) == NULL)
> goto alloc_io_queue_fail;
> memset(pio_queue->pallocated_free_ioreqs_buf, 0,
> diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
> index 1eca992..e147c4b 100644
> --- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
> +++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
> @@ -424,10 +424,9 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
> wep_key_idx = 0;
> if (wep_key_len > 0) {
> wep_key_len = wep_key_len <= 5 ? 5 : 13;
> - pwep = (struct NDIS_802_11_WEP *)_malloc((u32)
> - (wep_key_len +
> - FIELD_OFFSET(struct NDIS_802_11_WEP,
> - KeyMaterial)));
> + pwep = kmalloc((u32)(wep_key_len +
> + FIELD_OFFSET(struct NDIS_802_11_WEP, KeyMaterial)),
> + GFP_ATOMIC);
> if (pwep == NULL)
> return -ENOMEM;
> memset(pwep, 0, sizeof(struct NDIS_802_11_WEP));
> @@ -518,10 +517,9 @@ static int r871x_set_wpa_ie(struct _adapter *padapter, char *pie,
> if ((ielen > MAX_WPA_IE_LEN) || (pie == NULL))
> return -EINVAL;
> if (ielen) {
> - buf = _malloc(ielen);
> + buf = kmemdup(pie, ielen, GFP_ATOMIC);
> if (buf == NULL)
> return -ENOMEM;
> - memcpy(buf, pie , ielen);
> pos = buf;
> if (ielen < RSN_HEADER_LEN) {
> ret = -EINVAL;
> @@ -959,13 +957,9 @@ static int r871x_wx_set_priv(struct net_device *dev,
> struct iw_point *dwrq = (struct iw_point *)awrq;
>
> len = dwrq->length;
> - ext = _malloc(len);
> - if (!ext)
> - return -ENOMEM;
> - if (copy_from_user(ext, dwrq->pointer, len)) {
> - kfree(ext);
> - return -EFAULT;
> - }
> + ext = memdup_user(dwrq->pointer, len);
> + if (IS_ERR(ext))
> + return PTR_ERR(ext);
>
> if (0 == strcasecmp(ext, "RSSI")) {
> /*Return received signal strength indicator in -db for */
> @@ -1819,10 +1813,9 @@ static int r871x_wx_set_enc_ext(struct net_device *dev,
> }
>
> param_len = sizeof(struct ieee_param) + pext->key_len;
> - param = (struct ieee_param *)_malloc(param_len);
> + param = kzalloc(param_len, GFP_ATOMIC);
> if (param == NULL)
> return -ENOMEM;
> - memset(param, 0, param_len);
> param->cmd = IEEE_CMD_SET_ENCRYPTION;
> memset(param->sta_addr, 0xff, ETH_ALEN);
>
> @@ -1922,7 +1915,7 @@ static int r871x_mp_ioctl_hdl(struct net_device *dev,
> bset = (u8)(p->flags & 0xFFFF);
> len = p->length;
> pparmbuf = NULL;
> - pparmbuf = (u8 *)_malloc(len);
> + pparmbuf = kmalloc(len, GFP_ATOMIC);
> if (pparmbuf == NULL) {
> ret = -ENOMEM;
> goto _r871x_mp_ioctl_hdl_exit;
> @@ -2195,13 +2188,9 @@ static int wpa_supplicant_ioctl(struct net_device *dev, struct iw_point *p)
>
> if (p->length < sizeof(struct ieee_param) || !p->pointer)
> return -EINVAL;
> - param = (struct ieee_param *)_malloc(p->length);
> - if (param == NULL)
> - return -ENOMEM;
> - if (copy_from_user(param, p->pointer, p->length)) {
> - kfree((u8 *)param);
> - return -EFAULT;
> - }
> + param = memdup_user(p->pointer, p->length);
> + if (IS_ERR(param))
> + return PTR_ERR(param);
> switch (param->cmd) {
> case IEEE_CMD_SET_WPA_PARAM:
> ret = wpa_set_param(dev, param->u.wpa_param.name,
> diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
> index f8f651a..02339e1 100644
> --- a/drivers/staging/rtl8712/rtl871x_mlme.c
> +++ b/drivers/staging/rtl8712/rtl871x_mlme.c
> @@ -62,7 +62,8 @@ static sint _init_mlme_priv(struct _adapter *padapter)
> _init_queue(&(pmlmepriv->scanned_queue));
> set_scanned_network_val(pmlmepriv, 0);
> memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
> - pbuf = _malloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
> + pbuf = kmalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)),
> + GFP_ATOMIC);
> if (pbuf == NULL)
> return _FAIL;
> pmlmepriv->free_bss_buf = pbuf;
> @@ -725,8 +726,7 @@ void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
> struct wlan_network *pnetwork;
>
> if (sizeof(struct list_head) == 4 * sizeof(u32)) {
> - pnetwork = (struct wlan_network *)
> - _malloc(sizeof(struct wlan_network));
> + pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
> memcpy((u8 *)pnetwork+16, (u8 *)pbuf + 8,
> sizeof(struct wlan_network) - 16);
> } else
> @@ -1212,17 +1212,15 @@ sint r8712_set_auth(struct _adapter *adapter,
> struct cmd_obj *pcmd;
> struct setauth_parm *psetauthparm;
>
> - pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + pcmd = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (pcmd == NULL)
> return _FAIL;
>
> - psetauthparm = (struct setauth_parm *)_malloc(
> - sizeof(struct setauth_parm));
> + psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_ATOMIC);
> if (psetauthparm == NULL) {
> kfree((unsigned char *)pcmd);
> return _FAIL;
> }
> - memset(psetauthparm, 0, sizeof(struct setauth_parm));
> psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
> pcmd->cmdcode = _SetAuth_CMD_;
> pcmd->parmbuf = (unsigned char *)psetauthparm;
> @@ -1244,15 +1242,14 @@ sint r8712_set_key(struct _adapter *adapter,
> u8 keylen;
> sint ret = _SUCCESS;
>
> - pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + pcmd = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (pcmd == NULL)
> return _FAIL;
> - psetkeyparm = (struct setkey_parm *)_malloc(sizeof(struct setkey_parm));
> + psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_ATOMIC);
> if (psetkeyparm == NULL) {
> ret = _FAIL;
> goto err_free_cmd;
> }
> - memset(psetkeyparm, 0, sizeof(struct setkey_parm));
> if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
> psetkeyparm->algorithm =
> (u8)psecuritypriv->XGrpPrivacy;
> diff --git a/drivers/staging/rtl8712/rtl871x_mp.c b/drivers/staging/rtl8712/rtl871x_mp.c
> index 5fd60cd..389062f 100644
> --- a/drivers/staging/rtl8712/rtl871x_mp.c
> +++ b/drivers/staging/rtl8712/rtl871x_mp.c
> @@ -53,8 +53,9 @@ static int init_mp_priv(struct mp_priv *pmp_priv)
> _init_mp_priv_(pmp_priv);
> _init_queue(&pmp_priv->free_mp_xmitqueue);
> pmp_priv->pallocated_mp_xmitframe_buf = NULL;
> - pmp_priv->pallocated_mp_xmitframe_buf = _malloc(NR_MP_XMITFRAME *
> - sizeof(struct mp_xmit_frame) + 4);
> + pmp_priv->pallocated_mp_xmitframe_buf = kmalloc(NR_MP_XMITFRAME *
> + sizeof(struct mp_xmit_frame) + 4,
> + GFP_ATOMIC);
> if (pmp_priv->pallocated_mp_xmitframe_buf == NULL) {
> res = _FAIL;
> goto _exit_init_mp_priv;
> @@ -280,11 +281,10 @@ void r8712_SetChannel(struct _adapter *pAdapter)
> struct SetChannel_parm *pparm = NULL;
> u16 code = GEN_CMD_CODE(_SetChannel);
>
> - pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
> + pcmd = kmalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
> if (pcmd == NULL)
> return;
> - pparm = (struct SetChannel_parm *)_malloc(sizeof(struct
> - SetChannel_parm));
> + pparm = kmalloc(sizeof(struct SetChannel_parm), GFP_ATOMIC);
> if (pparm == NULL) {
> kfree(pcmd);
> return;
> diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c
> index 4ac4a1b..eb77587 100644
> --- a/drivers/staging/rtl8712/rtl871x_recv.c
> +++ b/drivers/staging/rtl8712/rtl871x_recv.c
> @@ -72,9 +72,9 @@ sint _r8712_init_recv_priv(struct recv_priv *precvpriv,
> _init_queue(&precvpriv->recv_pending_queue);
> precvpriv->adapter = padapter;
> precvpriv->free_recvframe_cnt = NR_RECVFRAME;
> - precvpriv->pallocated_frame_buf = _malloc(NR_RECVFRAME *
> - sizeof(union recv_frame) +
> - RXFRAME_ALIGN_SZ);
> + precvpriv->pallocated_frame_buf = kmalloc(NR_RECVFRAME *
> + sizeof(union recv_frame) + RXFRAME_ALIGN_SZ,
> + GFP_ATOMIC);
> if (precvpriv->pallocated_frame_buf == NULL)
> return _FAIL;
> kmemleak_not_leak(precvpriv->pallocated_frame_buf);
> diff --git a/drivers/staging/rtl8712/rtl871x_sta_mgt.c b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
> index 8db6849..6c64984 100644
> --- a/drivers/staging/rtl8712/rtl871x_sta_mgt.c
> +++ b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
> @@ -51,8 +51,8 @@ u32 _r8712_init_sta_priv(struct sta_priv *pstapriv)
> struct sta_info *psta;
> s32 i;
>
> - pstapriv->pallocated_stainfo_buf = _malloc(sizeof(struct sta_info) *
> - NUM_STA + 4);
> + pstapriv->pallocated_stainfo_buf = kmalloc(sizeof(struct sta_info) *
> + NUM_STA + 4, GFP_ATOMIC);
> if (pstapriv->pallocated_stainfo_buf == NULL)
> return _FAIL;
> pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 -
> diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c
> index 78f570b..230681a 100644
> --- a/drivers/staging/rtl8712/rtl871x_xmit.c
> +++ b/drivers/staging/rtl8712/rtl871x_xmit.c
> @@ -87,8 +87,8 @@ sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
> and initialize free_xmit_frame below.
> Please also apply free_txobj to link_up all the xmit_frames...
> */
> - pxmitpriv->pallocated_frame_buf = _malloc(NR_XMITFRAME *
> - sizeof(struct xmit_frame) + 4);
> + pxmitpriv->pallocated_frame_buf = kmalloc(NR_XMITFRAME * sizeof(struct xmit_frame) + 4,
> + GFP_ATOMIC);
> if (pxmitpriv->pallocated_frame_buf == NULL) {
> pxmitpriv->pxmit_frame_buf = NULL;
> return _FAIL;
> @@ -126,8 +126,8 @@ sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
> /*init xmit_buf*/
> _init_queue(&pxmitpriv->free_xmitbuf_queue);
> _init_queue(&pxmitpriv->pending_xmitbuf_queue);
> - pxmitpriv->pallocated_xmitbuf = _malloc(NR_XMITBUFF *
> - sizeof(struct xmit_buf) + 4);
> + pxmitpriv->pallocated_xmitbuf = kmalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4,
> + GFP_ATOMIC);
> if (pxmitpriv->pallocated_xmitbuf == NULL)
> return _FAIL;
> pxmitpriv->pxmitbuf = pxmitpriv->pallocated_xmitbuf + 4 -
> @@ -135,8 +135,8 @@ sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
> pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
> for (i = 0; i < NR_XMITBUFF; i++) {
> _init_listhead(&pxmitbuf->list);
> - pxmitbuf->pallocated_buf = _malloc(MAX_XMITBUF_SZ +
> - XMITBUF_ALIGN_SZ);
> + pxmitbuf->pallocated_buf = kmalloc(MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ,
> + GFP_ATOMIC);
> if (pxmitbuf->pallocated_buf == NULL)
> return _FAIL;
> pxmitbuf->pbuf = pxmitbuf->pallocated_buf + XMITBUF_ALIGN_SZ -
> @@ -955,8 +955,8 @@ static void alloc_hwxmits(struct _adapter *padapter)
> struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
>
> pxmitpriv->hwxmit_entry = HWXMIT_ENTRY;
> - pxmitpriv->hwxmits = (struct hw_xmit *)_malloc(sizeof(struct hw_xmit) *
> - pxmitpriv->hwxmit_entry);
> + pxmitpriv->hwxmits = kmalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry,
> + GFP_ATOMIC);
> if (pxmitpriv->hwxmits == NULL)
> return;
> hwxmits = pxmitpriv->hwxmits;
> diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c
> index dca398a..064dc10 100644
> --- a/drivers/staging/rtl8712/usb_ops_linux.c
> +++ b/drivers/staging/rtl8712/usb_ops_linux.c
> @@ -495,7 +495,7 @@ int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value,
> */
> u8 *palloc_buf, *pIo_buf;
>
> - palloc_buf = _malloc((u32) len + 16);
> + palloc_buf = kmalloc((u32)len + 16, GFP_ATOMIC);
> if (palloc_buf == NULL) {
> dev_err(&udev->dev, "%s: Can't alloc memory for vendor request\n",
> __func__);

--
Andy Shevchenko <andriy.shevchenko@xxxxxxxxx>
Intel Finland Oy

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