From: Andrew Morton drivers/media/video/em28xx/em28xx-core.c: In function 'em28xx_set_audio_source': drivers/media/video/em28xx/em28xx-core.c:276: warning: 'no_ac97' may be used uninitialized in this function This looks like a genuine bug to me. Cc: Mauro Carvalho Chehab Signed-off-by: Andrew Morton --- drivers/media/video/em28xx/em28xx-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff -puN drivers/media/video/em28xx/em28xx-core.c~drivers-media-video-em28xx-em28xx-corec-fix-use-of-potentially-uninitialized-variable drivers/media/video/em28xx/em28xx-core.c --- a/drivers/media/video/em28xx/em28xx-core.c~drivers-media-video-em28xx-em28xx-corec-fix-use-of-potentially-uninitialized-variable +++ a/drivers/media/video/em28xx/em28xx-core.c @@ -273,7 +273,8 @@ int em28xx_set_audio_source(struct em28x static char *enable = "\x08\x08"; static char *disable = "\x08\x88"; char *video = enable, *line = disable; - int ret, no_ac97; + int ret; + int no_ac97 = 0; u8 input; if (dev->is_em2800) { _