Re: [PATCH 07/22] media: Use pci_zalloc_consistent
From: Hans Verkuil
Date: Fri Jun 27 2014 - 04:20:57 EST
Hi Joe,
For the media subsystem:
Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Regards,
Hans
On 06/23/2014 03:41 PM, Joe Perches wrote:
Remove the now unnecessary memset too.
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
drivers/media/common/saa7146/saa7146_core.c | 15 ++++++---------
drivers/media/common/saa7146/saa7146_fops.c | 5 +++--
drivers/media/pci/bt8xx/bt878.c | 16 ++++------------
drivers/media/pci/ngene/ngene-core.c | 7 +++----
drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c | 11 +++--------
drivers/media/usb/ttusb-dec/ttusb_dec.c | 11 +++--------
6 files changed, 22 insertions(+), 43 deletions(-)
diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c
index 34b0d0d..97afee6 100644
--- a/drivers/media/common/saa7146/saa7146_core.c
+++ b/drivers/media/common/saa7146/saa7146_core.c
@@ -421,23 +421,20 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
err = -ENOMEM;
/* get memory for various stuff */
- dev->d_rps0.cpu_addr = pci_alloc_consistent(pci, SAA7146_RPS_MEM,
- &dev->d_rps0.dma_handle);
+ dev->d_rps0.cpu_addr = pci_zalloc_consistent(pci, SAA7146_RPS_MEM,
+ &dev->d_rps0.dma_handle);
if (!dev->d_rps0.cpu_addr)
goto err_free_irq;
- memset(dev->d_rps0.cpu_addr, 0x0, SAA7146_RPS_MEM);
- dev->d_rps1.cpu_addr = pci_alloc_consistent(pci, SAA7146_RPS_MEM,
- &dev->d_rps1.dma_handle);
+ dev->d_rps1.cpu_addr = pci_zalloc_consistent(pci, SAA7146_RPS_MEM,
+ &dev->d_rps1.dma_handle);
if (!dev->d_rps1.cpu_addr)
goto err_free_rps0;
- memset(dev->d_rps1.cpu_addr, 0x0, SAA7146_RPS_MEM);
- dev->d_i2c.cpu_addr = pci_alloc_consistent(pci, SAA7146_RPS_MEM,
- &dev->d_i2c.dma_handle);
+ dev->d_i2c.cpu_addr = pci_zalloc_consistent(pci, SAA7146_RPS_MEM,
+ &dev->d_i2c.dma_handle);
if (!dev->d_i2c.cpu_addr)
goto err_free_rps1;
- memset(dev->d_i2c.cpu_addr, 0x0, SAA7146_RPS_MEM);
/* the rest + print status message */
diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c
index eda01bc..a776a80 100644
--- a/drivers/media/common/saa7146/saa7146_fops.c
+++ b/drivers/media/common/saa7146/saa7146_fops.c
@@ -520,14 +520,15 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
configuration data) */
dev->ext_vv_data = ext_vv;
- vv->d_clipping.cpu_addr = pci_alloc_consistent(dev->pci, SAA7146_CLIPPING_MEM, &vv->d_clipping.dma_handle);
+ vv->d_clipping.cpu_addr =
+ pci_zalloc_consistent(dev->pci, SAA7146_CLIPPING_MEM,
+ &vv->d_clipping.dma_handle);
if( NULL == vv->d_clipping.cpu_addr ) {
ERR("out of memory. aborting.\n");
kfree(vv);
v4l2_ctrl_handler_free(hdl);
return -1;
}
- memset(vv->d_clipping.cpu_addr, 0x0, SAA7146_CLIPPING_MEM);
saa7146_video_uops.init(dev,vv);
if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c
index d0c281f..1176583 100644
--- a/drivers/media/pci/bt8xx/bt878.c
+++ b/drivers/media/pci/bt8xx/bt878.c
@@ -101,28 +101,20 @@ static int bt878_mem_alloc(struct bt878 *bt)
if (!bt->buf_cpu) {
bt->buf_size = 128 * 1024;
- bt->buf_cpu =
- pci_alloc_consistent(bt->dev, bt->buf_size,
- &bt->buf_dma);
-
+ bt->buf_cpu = pci_zalloc_consistent(bt->dev, bt->buf_size,
+ &bt->buf_dma);
if (!bt->buf_cpu)
return -ENOMEM;
-
- memset(bt->buf_cpu, 0, bt->buf_size);
}
if (!bt->risc_cpu) {
bt->risc_size = PAGE_SIZE;
- bt->risc_cpu =
- pci_alloc_consistent(bt->dev, bt->risc_size,
- &bt->risc_dma);
-
+ bt->risc_cpu = pci_zalloc_consistent(bt->dev, bt->risc_size,
+ &bt->risc_dma);
if (!bt->risc_cpu) {
bt878_mem_free(bt);
return -ENOMEM;
}
-
- memset(bt->risc_cpu, 0, bt->risc_size);
}
return 0;
diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index 970e833..37dc149 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -1078,12 +1078,11 @@ static int AllocCommonBuffers(struct ngene *dev)
dev->ngenetohost = dev->FWInterfaceBuffer + 256;
dev->EventBuffer = dev->FWInterfaceBuffer + 512;
- dev->OverflowBuffer = pci_alloc_consistent(dev->pci_dev,
- OVERFLOW_BUFFER_SIZE,
- &dev->PAOverflowBuffer);
+ dev->OverflowBuffer = pci_zalloc_consistent(dev->pci_dev,
+ OVERFLOW_BUFFER_SIZE,
+ &dev->PAOverflowBuffer);
if (!dev->OverflowBuffer)
return -ENOMEM;
- memset(dev->OverflowBuffer, 0, OVERFLOW_BUFFER_SIZE);
for (i = STREAM_VIDEOIN1; i < MAX_STREAM; i++) {
int type = dev->card_info->io_type[i];
diff --git a/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c
index f8a60c1..0d3194a 100644
--- a/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c
@@ -804,11 +804,9 @@ static int ttusb_alloc_iso_urbs(struct ttusb *ttusb)
{
int i;
- ttusb->iso_buffer = pci_alloc_consistent(NULL,
- ISO_FRAME_SIZE *
- FRAMES_PER_ISO_BUF *
- ISO_BUF_COUNT,
- &ttusb->iso_dma_handle);
+ ttusb->iso_buffer = pci_zalloc_consistent(NULL,
+ ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF * ISO_BUF_COUNT,
+ &ttusb->iso_dma_handle);
if (!ttusb->iso_buffer) {
dprintk("%s: pci_alloc_consistent - not enough memory\n",
@@ -816,9 +814,6 @@ static int ttusb_alloc_iso_urbs(struct ttusb *ttusb)
return -ENOMEM;
}
- memset(ttusb->iso_buffer, 0,
- ISO_FRAME_SIZE * FRAMES_PER_ISO_BUF * ISO_BUF_COUNT);
-
for (i = 0; i < ISO_BUF_COUNT; i++) {
struct urb *urb;
diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c
index 29724af..15ab584 100644
--- a/drivers/media/usb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c
@@ -1151,11 +1151,9 @@ static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec)
dprintk("%s\n", __func__);
- dec->iso_buffer = pci_alloc_consistent(NULL,
- ISO_FRAME_SIZE *
- (FRAMES_PER_ISO_BUF *
- ISO_BUF_COUNT),
- &dec->iso_dma_handle);
+ dec->iso_buffer = pci_zalloc_consistent(NULL,
+ ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT),
+ &dec->iso_dma_handle);
if (!dec->iso_buffer) {
dprintk("%s: pci_alloc_consistent - not enough memory\n",
@@ -1163,9 +1161,6 @@ static int ttusb_dec_alloc_iso_urbs(struct ttusb_dec *dec)
return -ENOMEM;
}
- memset(dec->iso_buffer, 0,
- ISO_FRAME_SIZE * (FRAMES_PER_ISO_BUF * ISO_BUF_COUNT));
-
for (i = 0; i < ISO_BUF_COUNT; i++) {
struct urb *urb;
--
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