[PATCH] staging: ks7010: fix coding style issues in ks7010_sdio.c

From: Sabitha George
Date: Thu Sep 01 2016 - 17:53:37 EST

This is a patch to the ks7010_sdio.c that fixes the following
warnings found by checkpatch.pl
1) Missing a blank line after declarations
2) braces are not necessary for single statement blocks
3) kfree(NULL) is safe and this check is probably not required
4) void function return statements are not generally useful
5) "foo * bar" should be "foo *bar"
6) Code indent should use tabs where possible
7) printk() should include KERN_ facility level

Signed-off-by: Sabitha George <sabitha.george@xxxxxxxxx>
---
drivers/staging/ks7010/ks7010_sdio.c | 107 ++++++++++++++---------------------
1 file changed, 44 insertions(+), 63 deletions(-)

diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
index b7337fd..e623b33 100644
--- a/drivers/staging/ks7010/ks7010_sdio.c
+++ b/drivers/staging/ks7010/ks7010_sdio.c
@@ -14,7 +14,7 @@
#include <linux/mmc/card.h>
#include <linux/mmc/sdio_func.h>
#include <linux/workqueue.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>

#include "ks_wlan.h"
#include "ks_wlan_ioctl.h"
@@ -35,18 +35,20 @@ MODULE_DEVICE_TABLE(sdio, ks7010_sdio_ids);
/* macro */

#define inc_txqhead(priv) \
- ( priv->tx_dev.qhead = (priv->tx_dev.qhead + 1) % TX_DEVICE_BUFF_SIZE )
+ (priv->tx_dev.qhead = (priv->tx_dev.qhead + 1) % TX_DEVICE_BUFF_SIZE)
#define inc_txqtail(priv) \
- ( priv->tx_dev.qtail = (priv->tx_dev.qtail + 1) % TX_DEVICE_BUFF_SIZE )
+ (priv->tx_dev.qtail = (priv->tx_dev.qtail + 1) % TX_DEVICE_BUFF_SIZE)
#define cnt_txqbody(priv) \
- (((priv->tx_dev.qtail + TX_DEVICE_BUFF_SIZE) - (priv->tx_dev.qhead)) % TX_DEVICE_BUFF_SIZE )
+ (((priv->tx_dev.qtail + TX_DEVICE_BUFF_SIZE) - (priv->tx_dev.qhead)) % \
+ TX_DEVICE_BUFF_SIZE)

#define inc_rxqhead(priv) \
- ( priv->rx_dev.qhead = (priv->rx_dev.qhead + 1) % RX_DEVICE_BUFF_SIZE )
+ (priv->rx_dev.qhead = (priv->rx_dev.qhead + 1) % RX_DEVICE_BUFF_SIZE)
#define inc_rxqtail(priv) \
- ( priv->rx_dev.qtail = (priv->rx_dev.qtail + 1) % RX_DEVICE_BUFF_SIZE )
+ (priv->rx_dev.qtail = (priv->rx_dev.qtail + 1) % RX_DEVICE_BUFF_SIZE)
#define cnt_rxqbody(priv) \
- (((priv->rx_dev.qtail + RX_DEVICE_BUFF_SIZE) - (priv->rx_dev.qhead)) % RX_DEVICE_BUFF_SIZE )
+ (((priv->rx_dev.qtail + RX_DEVICE_BUFF_SIZE) - (priv->rx_dev.qhead)) % \
+ RX_DEVICE_BUFF_SIZE)

static int ks7010_sdio_read(struct ks_wlan_private *priv, unsigned int address,
unsigned char *buffer, int length)
@@ -115,7 +117,6 @@ void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv)

out:
priv->sleep_mode = atomic_read(&priv->sleepstatus.status);
- return;
}

void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv)
@@ -146,7 +147,6 @@ void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv)

out:
priv->sleep_mode = atomic_read(&priv->sleepstatus.status);
- return;
}

void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv)
@@ -159,9 +159,8 @@ void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv)
rw_data = WAKEUP_REQ;
retval =
ks7010_sdio_write(priv, WAKEUP, &rw_data, sizeof(rw_data));
- if (retval) {
+ if (retval)
DPRINTK(1, " error : WAKEUP=%02X\n", rw_data);
- }
DPRINTK(4, "wake up : WAKEUP=%02X\n", rw_data);
priv->last_wakeup = jiffies;
++priv->wakeup_count;
@@ -246,7 +245,6 @@ int _ks_wlan_hw_power_save(struct ks_wlan_private *priv)
break;
}
}
-
}

return rc;
@@ -261,7 +259,7 @@ int ks_wlan_hw_power_save(struct ks_wlan_private *priv)

static int enqueue_txdev(struct ks_wlan_private *priv, unsigned char *p,
unsigned long size,
- void (*complete_handler) (void *arg1, void *arg2),
+ void (*complete_handler)(void *arg1, void *arg2),
void *arg1, void *arg2)
{
struct tx_device_buffer *sp;
@@ -300,6 +298,7 @@ static int write_to_device(struct ks_wlan_private *priv, unsigned char *buffer,
int rc, retval;
unsigned char rw_data;
struct hostif_hdr *hdr;
+
hdr = (struct hostif_hdr *)buffer;
rc = 0;

@@ -346,7 +345,6 @@ static void tx_device_task(void *dev)
&priv->ks_wlan_hw.rw_wq, 1);
return;
}
-
}
kfree(sp->sendp); /* allocated memory free */
if (sp->complete_handler != NULL) /* TX Complete */
@@ -358,15 +356,15 @@ static void tx_device_task(void *dev)
&priv->ks_wlan_hw.rw_wq, 0);
}
}
- return;
}

int ks_wlan_hw_tx(struct ks_wlan_private *priv, void *p, unsigned long size,
- void (*complete_handler) (void *arg1, void *arg2),
+ void (*complete_handler)(void *arg1, void *arg2),
void *arg1, void *arg2)
{
int result = 0;
struct hostif_hdr *hdr;
+
hdr = (struct hostif_hdr *)p;

if (hdr->event < HIF_DATA_REQ || HIF_REQ_MAX < hdr->event) {
@@ -402,12 +400,9 @@ static void rx_event_task(unsigned long dev)
hostif_receive(priv, rp->data, rp->size);
inc_rxqhead(priv);

- if (cnt_rxqbody(priv) > 0) {
+ if (cnt_rxqbody(priv) > 0)
tasklet_schedule(&priv->ks_wlan_hw.rx_bh_task);
- }
}
-
- return;
}

static void ks_wlan_hw_rx(void *dev, uint16_t size)
@@ -432,9 +427,8 @@ static void ks_wlan_hw_rx(void *dev, uint16_t size)
retval =
ks7010_sdio_read(priv, DATA_WINDOW, &rx_buffer->data[0],
hif_align_size(size));
- if (retval) {
+ if (retval)
goto error_out;
- }

/* length check */
if (size > 2046 || size == 0) {
@@ -449,9 +443,8 @@ static void ks_wlan_hw_rx(void *dev, uint16_t size)
retval =
ks7010_sdio_write(priv, READ_STATUS, &read_status,
sizeof(read_status));
- if (retval) {
+ if (retval)
DPRINTK(1, " error : READ_STATUS=%02X\n", read_status);
- }
goto error_out;
}

@@ -465,9 +458,8 @@ static void ks_wlan_hw_rx(void *dev, uint16_t size)
retval =
ks7010_sdio_write(priv, READ_STATUS, &read_status,
sizeof(read_status));
- if (retval) {
+ if (retval)
DPRINTK(1, " error : READ_STATUS=%02X\n", read_status);
- }
DPRINTK(4, "READ_STATUS=%02X\n", read_status);

if (atomic_read(&priv->psstatus.confirm_wait)) {
@@ -507,10 +499,11 @@ static void ks7010_rw_function(struct work_struct *work)
/* wiat after WAKEUP */
while (time_after(priv->last_wakeup + ((30 * HZ) / 1000), jiffies)) {
DPRINTK(4, "wait after WAKEUP \n");
-/* queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq,&priv->ks_wlan_hw.rw_wq,
- (priv->last_wakeup + ((30*HZ)/1000) - jiffies));*/
- printk("wake: %lu %lu\n", priv->last_wakeup + (30 * HZ) / 1000,
- jiffies);
+ /* queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq,*/
+ /* &priv->ks_wlan_hw.rw_wq,*/
+ /* (priv->last_wakeup + ((30*HZ)/1000) - jiffies)); */
+ pr_info("wake: %lu %lu\n",
+ priv->last_wakeup + (30 * HZ) / 1000, jiffies);
msleep(30);
}

@@ -547,19 +540,16 @@ static void ks7010_rw_function(struct work_struct *work)
}
DPRINTK(4, "WSTATUS_RSIZE=%02X\n", rw_data);

- if (rw_data & RSIZE_MASK) { /* Read schedule */
+ if (rw_data & RSIZE_MASK)/* Read schedule */
ks_wlan_hw_rx((void *)priv,
(uint16_t) (((rw_data & RSIZE_MASK) << 4)));
- }
- if ((rw_data & WSTATUS_MASK)) {
+
+ if ((rw_data & WSTATUS_MASK))
tx_device_task((void *)priv);
- }
_ks_wlan_hw_power_save(priv);

err_out:
sdio_release_host(priv->ks_wlan_hw.sdio_card->func);
-
- return;
}

static void ks_sdio_interrupt(struct sdio_func *func)
@@ -667,7 +657,6 @@ static void ks_sdio_interrupt(struct sdio_func *func)
intr_out:
queue_delayed_work(priv->ks_wlan_hw.ks7010sdio_wq,
&priv->ks_wlan_hw.rw_wq, 0);
- return;
}

static int trx_device_init(struct ks_wlan_private *priv)
@@ -702,8 +691,6 @@ static void trx_device_exit(struct ks_wlan_private *priv)
}

tasklet_kill(&priv->ks_wlan_hw.rx_bh_task);
-
- return;
}

static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
@@ -711,6 +698,7 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
int rc = 0;
int retval;
unsigned char *data_buf;
+
data_buf = NULL;

data_buf = kmalloc(sizeof(u32), GFP_KERNEL);
@@ -732,8 +720,7 @@ static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
goto error_out;
}
error_out:
- if (data_buf)
- kfree(data_buf);
+ kfree(data_buf);
return rc;
}

@@ -744,6 +731,7 @@ static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address,
int rc = 0;
int retval;
unsigned char *read_buf;
+
read_buf = NULL;
read_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL);
if (!read_buf) {
@@ -763,8 +751,7 @@ static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address,
goto error_out;
}
error_out:
- if (read_buf)
- kfree(read_buf);
+ kfree(read_buf);
return rc;
}

@@ -879,8 +866,7 @@ static int ks7010_upload_firmware(struct ks_wlan_private *priv,
release_firmware(fw_entry);
error_out0:
sdio_release_host(card->func);
- if (rom_buf)
- kfree(rom_buf);
+ kfree(rom_buf);
return rc;
}

@@ -903,9 +889,8 @@ static void ks7010_card_init(struct ks_wlan_private *priv)
DPRINTK(1, "wait time out!! SME_START\n");
}

- if (priv->mac_address_valid && priv->version_size) {
+ if (priv->mac_address_valid && priv->version_size)
priv->dev_state = DEVICE_STATE_PREINIT;
- }

hostif_sme_enqueue(priv, SME_GET_EEPROM_CKSUM);

@@ -1024,17 +1009,17 @@ static int ks7010_sdio_probe(struct sdio_func *func,

sdio_set_drvdata(func, card);

- DPRINTK(5, "class = 0x%X, vendor = 0x%X, "
- "device = 0x%X\n", func->class, func->vendor, func->device);
+ DPRINTK(5, "class = 0x%X, vendor = 0x%X,device = 0x%X\n",
+ func->class, func->vendor, func->device);

/* private memory allocate */
netdev = alloc_etherdev(sizeof(*priv));
if (netdev == NULL) {
- printk(KERN_ERR "ks7010 : Unable to alloc new net device\n");
+ pr_err("ks7010 : Unable to alloc new net device\n");
goto error_release_irq;
}
if (dev_alloc_name(netdev, "wlan%d") < 0) {
- printk(KERN_ERR "ks7010 : Couldn't get name!\n");
+ pr_err("ks7010 : Couldn't get name!\n");
goto error_free_netdev;
}

@@ -1048,9 +1033,8 @@ static int ks7010_sdio_probe(struct sdio_func *func,
init_completion(&priv->ks_wlan_hw.ks7010_sdio_wait);
priv->ks_wlan_hw.read_buf = NULL;
priv->ks_wlan_hw.read_buf = kmalloc(RX_DATA_SIZE, GFP_KERNEL);
- if (!priv->ks_wlan_hw.read_buf) {
+ if (!priv->ks_wlan_hw.read_buf)
goto error_free_netdev;
- }
priv->dev_state = DEVICE_STATE_PREBOOT;
priv->net_dev = netdev;
priv->firmware_version[0] = '\0';
@@ -1074,8 +1058,7 @@ static int ks7010_sdio_probe(struct sdio_func *func,
/* Upload firmware */
ret = ks7010_upload_firmware(priv, card); /* firmware load */
if (ret) {
- printk(KERN_ERR
- "ks7010: firmware load failed !! retern code = %d\n",
+ pr_err("ks7010: firmware load failed !! return code = %d\n",
ret);
goto error_free_read_buf;
}
@@ -1086,9 +1069,9 @@ static int ks7010_sdio_probe(struct sdio_func *func,
sdio_claim_host(func);
ret = ks7010_sdio_write(priv, INT_PENDING, &rw_data, sizeof(rw_data));
sdio_release_host(func);
- if (ret) {
+ if (ret)
DPRINTK(1, " error : INT_PENDING=%02X\n", rw_data);
- }
+
DPRINTK(4, " clear Interrupt : INT_PENDING=%02X\n", rw_data);

/* enable ks7010sdio interrupt (INT_GCR_B|INT_READ_STATUS|INT_WRITE_STATUS) */
@@ -1096,9 +1079,8 @@ static int ks7010_sdio_probe(struct sdio_func *func,
sdio_claim_host(func);
ret = ks7010_sdio_write(priv, INT_ENABLE, &rw_data, sizeof(rw_data));
sdio_release_host(func);
- if (ret) {
+ if (ret)
DPRINTK(1, " error : INT_ENABLE=%02X\n", rw_data);
- }
DPRINTK(4, " enable Interrupt : INT_ENABLE=%02X\n", rw_data);
priv->dev_state = DEVICE_STATE_BOOT;

@@ -1142,6 +1124,7 @@ static void ks7010_sdio_remove(struct sdio_func *func)
struct ks_sdio_card *card;
struct ks_wlan_private *priv;
struct net_device *netdev;
+
DPRINTK(1, "ks7010_sdio_remove()\n");

card = sdio_get_drvdata(func);
@@ -1166,6 +1149,7 @@ static void ks7010_sdio_remove(struct sdio_func *func)
/* send stop request to MAC */
{
struct hostif_stop_request_t *pp;
+
pp = (struct hostif_stop_request_t *)
kzalloc(hif_align_size(sizeof(*pp)), GFP_KERNEL);
if (pp == NULL) {
@@ -1199,9 +1183,7 @@ static void ks7010_sdio_remove(struct sdio_func *func)
unregister_netdev(netdev);

trx_device_exit(priv);
- if (priv->ks_wlan_hw.read_buf) {
- kfree(priv->ks_wlan_hw.read_buf);
- }
+ kfree(priv->ks_wlan_hw.read_buf);
free_netdev(priv->net_dev);
card->priv = NULL;
}
@@ -1219,7 +1201,6 @@ static void ks7010_sdio_remove(struct sdio_func *func)
DPRINTK(1, "kfree()\n");

DPRINTK(5, " Bye !!\n");
- return;
}

static struct sdio_driver ks7010_sdio_driver = {
--
1.9.1