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authorPeter Senna Tschudin <peter.senna@gmail.com>2012-09-17 04:04:56 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-11-22 16:46:34 -0200
commitc81d497284f6009a856b399e70f812671fdc7fcf (patch)
treed3e2f08996f7c2682b26f7099c0df57cf68ff54e /drivers/media/pci/cx25821
parenteaddb09307494646650e7c7432739ade10bdf56c (diff)
downloadlinux-linaro-stable-c81d497284f6009a856b399e70f812671fdc7fcf.tar.gz
[media] cx25821: fix error return code and clean up
The function cx25821_sram_channel_setup_upstream_audio always return zero, so the return value is not saved any more. 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> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/cx25821')
-rw-r--r--drivers/media/pci/cx25821/cx25821-audio-upstream.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/media/pci/cx25821/cx25821-audio-upstream.c b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
index ad84613cf886..42ad84a68542 100644
--- a/drivers/media/pci/cx25821/cx25821-audio-upstream.c
+++ b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
@@ -700,7 +700,6 @@ fail_irq:
int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
{
struct sram_channel *sram_ch;
- int retval = 0;
int err = 0;
int str_length = 0;
@@ -735,8 +734,10 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
dev->_audiofilename = kmemdup(dev->input_audiofilename,
str_length + 1, GFP_KERNEL);
- if (!dev->_audiofilename)
+ if (!dev->_audiofilename) {
+ err = -ENOMEM;
goto error;
+ }
/* Default if filename is empty string */
if (strcmp(dev->input_audiofilename, "") == 0)
@@ -746,12 +747,14 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
dev->_audiofilename = kmemdup(_defaultAudioName,
str_length + 1, GFP_KERNEL);
- if (!dev->_audiofilename)
+ if (!dev->_audiofilename) {
+ err = -ENOMEM;
goto error;
+ }
}
- retval = cx25821_sram_channel_setup_upstream_audio(dev, sram_ch,
- _line_size, 0);
+ cx25821_sram_channel_setup_upstream_audio(dev, sram_ch,
+ _line_size, 0);
dev->audio_upstream_riscbuf_size =
AUDIO_RISC_DMA_BUF_SIZE * NUM_AUDIO_PROGS +
@@ -759,9 +762,9 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
dev->audio_upstream_databuf_size = AUDIO_DATA_BUF_SZ * NUM_AUDIO_PROGS;
/* Allocating buffers and prepare RISC program */
- retval = cx25821_audio_upstream_buffer_prepare(dev, sram_ch,
+ err = cx25821_audio_upstream_buffer_prepare(dev, sram_ch,
_line_size);
- if (retval < 0) {
+ if (err < 0) {
pr_err("%s: Failed to set up Audio upstream buffers!\n",
dev->name);
goto error;