[3/3] cx25821: Cleanup filename assignment code
Commit Message
I'm pasting the original code and my proposal on the commit message for
make it easy to compare the two versions.
Line 62 of cx25821-audio-upstream.h contains:
char *_defaultAudioName = "/root/audioGOOD.wav";
Original code after replace kmemdup for kstrdup, and after fix return error
code:
if (dev->input_audiofilename) {
dev->_audiofilename = kstrdup(dev->input_audiofilename,
GFP_KERNEL);
if (!dev->_audiofilename) {
err = -ENOMEM;
goto error;
}
/* Default if filename is empty string */
if (strcmp(dev->input_audiofilename, "") == 0)
dev->_audiofilename = "/root/audioGOOD.wav";
} else {
dev->_audiofilename = kstrdup(_defaultAudioName,
GFP_KERNEL);
if (!dev->_audiofilename) {
err = -ENOMEM;
goto error;
}
}
Code proposed in this patch:
if ((dev->input_audiofilename) &&
(strcmp(dev->input_audiofilename, "") != 0))
dev->_audiofilename = kstrdup(dev->input_audiofilename,
GFP_KERNEL);
else
dev->_audiofilename = kstrdup(_defaultAudioName,
GFP_KERNEL);
if (!dev->_audiofilename) {
err = -ENOMEM;
goto error;
}
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
---
drivers/media/pci/cx25821/cx25821-audio-upstream.c | 21 ++++++---------------
1 file changed, 6 insertions(+), 15 deletions(-)
@@ -728,26 +728,17 @@ int cx25821_audio_upstream_init(struct cx25821_dev *dev, int channel_select)
dev->_audio_lines_count = LINES_PER_AUDIO_BUFFER;
_line_size = AUDIO_LINE_SIZE;
- if (dev->input_audiofilename) {
+ if ((dev->input_audiofilename) &&
+ (strcmp(dev->input_audiofilename, "") != 0))
dev->_audiofilename = kstrdup(dev->input_audiofilename,
GFP_KERNEL);
-
- if (!dev->_audiofilename) {
- err = -ENOMEM;
- goto error;
- }
-
- /* Default if filename is empty string */
- if (strcmp(dev->input_audiofilename, "") == 0)
- dev->_audiofilename = "/root/audioGOOD.wav";
- } else {
+ else
dev->_audiofilename = kstrdup(_defaultAudioName,
GFP_KERNEL);
- if (!dev->_audiofilename) {
- err = -ENOMEM;
- goto error;
- }
+ if (!dev->_audiofilename) {
+ err = -ENOMEM;
+ goto error;
}
cx25821_sram_channel_setup_upstream_audio(dev, sram_ch,