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authorPeter Senna Tschudin <peter.senna@gmail.com>2012-09-08 10:01:58 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-11-22 15:39:11 -0200
commiteaddb09307494646650e7c7432739ade10bdf56c (patch)
treed713bf71ebf3a5c34403761f2fcf94e0e5258a82 /drivers/media/pci/cx25821
parent304a0807a22852fe3095a62c24b25c4d0e16d003 (diff)
[media] drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c: fix error return code
Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> While here, replace strlen()+kmemdup() to kstrdup(). Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: walter harms <wharms@bfs.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/cx25821')
-rw-r--r--drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c30
1 files changed, 12 insertions, 18 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c b/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
index f7a6e6b74199..cf2723c7197f 100644
--- a/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
+++ b/drivers/media/pci/cx25821/cx25821-video-upstream-ch2.c
@@ -708,11 +708,9 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
{
struct sram_channel *sram_ch;
u32 tmp;
- int retval = 0;
int err = 0;
int data_frame_size = 0;
int risc_buffer_size = 0;
- int str_length = 0;
if (dev->_is_running_ch2) {
pr_info("Video Channel is still running so return!\n");
@@ -748,20 +746,16 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
risc_buffer_size = dev->_isNTSC_ch2 ?
NTSC_RISC_BUF_SIZE : PAL_RISC_BUF_SIZE;
- if (dev->input_filename_ch2) {
- str_length = strlen(dev->input_filename_ch2);
- dev->_filename_ch2 = kmemdup(dev->input_filename_ch2,
- str_length + 1, GFP_KERNEL);
-
- if (!dev->_filename_ch2)
- goto error;
- } else {
- str_length = strlen(dev->_defaultname_ch2);
- dev->_filename_ch2 = kmemdup(dev->_defaultname_ch2,
- str_length + 1, GFP_KERNEL);
+ if (dev->input_filename_ch2)
+ dev->_filename_ch2 = kstrdup(dev->input_filename_ch2,
+ GFP_KERNEL);
+ else
+ dev->_filename_ch2 = kstrdup(dev->_defaultname_ch2,
+ GFP_KERNEL);
- if (!dev->_filename_ch2)
- goto error;
+ if (!dev->_filename_ch2) {
+ err = -ENOENT;
+ goto error;
}
/* Default if filename is empty string */
@@ -777,7 +771,7 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
}
}
- retval = cx25821_sram_channel_setup_upstream(dev, sram_ch,
+ err = cx25821_sram_channel_setup_upstream(dev, sram_ch,
dev->_line_size_ch2, 0);
/* setup fifo + format */
@@ -787,9 +781,9 @@ int cx25821_vidupstream_init_ch2(struct cx25821_dev *dev, int channel_select,
dev->upstream_databuf_size_ch2 = data_frame_size * 2;
/* Allocating buffers and prepare RISC program */
- retval = cx25821_upstream_buffer_prepare_ch2(dev, sram_ch,
+ err = cx25821_upstream_buffer_prepare_ch2(dev, sram_ch,
dev->_line_size_ch2);
- if (retval < 0) {
+ if (err < 0) {
pr_err("%s: Failed to set up Video upstream buffers!\n",
dev->name);
goto error;

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