diff options
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2009-07-07 19:15:16 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-07-08 09:19:49 -0700 |
| commit | feaa61e49b126c2206051a234b8f14ccc75b9f61 (patch) | |
| tree | f1b02b85d08b5b60a0278a6711a1ed1d14cd7c5c /drivers/video | |
| parent | 0c8ddf7f8bf770cf49086af85078c4660d387c55 (diff) | |
atafb: fix regression with uninitalized fb_info->mm_lock mutex
Remove redundant locking of the fb_info->mm_lock mutex before the
frambuffer is registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/atafb.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c index 497ff8af03ed..8cd279be74e5 100644 --- a/drivers/video/atafb.c +++ b/drivers/video/atafb.c @@ -2405,6 +2405,9 @@ static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive) return 0; } +/* fbhw->encode_fix() must be called with fb_info->mm_lock held + * if it is called after the register_framebuffer() - not a case here + */ static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) { struct atafb_par par; @@ -2414,9 +2417,7 @@ static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) if (err) return err; memset(fix, 0, sizeof(struct fb_fix_screeninfo)); - mutex_lock(&info->mm_lock); err = fbhw->encode_fix(fix, &par); - mutex_unlock(&info->mm_lock); return err; } |