oops happen in bttv_open while locking uninitialized mutex fh->cap.vb_lock
add mutex_init before usage
Signed-off-by: Dave Young <hidave.darks...@gmail.com>
Tested-by: Chris Clayton <chris2...@googlemail.com>
---
drivers/media/video/bt8xx/bttv-driver.c | 2 ++
1 file changed, 2 insertions(+)
--- linux-2.6.orig/drivers/media/video/bt8xx/bttv-driver.c 2010-11-27
11:21:30.000000000 +0800
+++ linux-2.6/drivers/media/video/bt8xx/bttv-driver.c 2010-12-12
16:31:39.633333338 +0800
@@ -3291,6 +3291,8 @@ static int bttv_open(struct file *file)
fh = kmalloc(sizeof(*fh), GFP_KERNEL);
if (unlikely(!fh))
return -ENOMEM;
+
+ mutex_init(&fh->cap.vb_lock);
file->private_data = fh;
/*
--
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