Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=eca28743b74736456bd75e0dabeb7d2df09fc03e
Commit: eca28743b74736456bd75e0dabeb7d2df09fc03e
Parent: 1c0c8461191d6d74926397abe2aa5f7cc9fd5a67
Author: Geert Uytterhoeven <[EMAIL PROTECTED]>
AuthorDate: Wed May 2 14:48:32 2007 +0200
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Fri May 4 17:59:08 2007 -0700
ps3fb: atomic fixes
ps3fb: Use atomic_dec_if_positive() instead of bogus
atomic_read()/atomic_dec()
combinations
Signed-off-by: Geert Uytterhoeven <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/video/ps3fb.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index 815b3cc..dd6dd6e 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -680,13 +680,10 @@ EXPORT_SYMBOL_GPL(ps3fb_wait_for_vsync);
void ps3fb_flip_ctl(int on)
{
- if (on) {
- if (atomic_read(&ps3fb.ext_flip) > 0) {
- atomic_dec(&ps3fb.ext_flip);
- }
- } else {
+ if (on)
+ atomic_dec_if_positive(&ps3fb.ext_flip);
+ else
atomic_inc(&ps3fb.ext_flip);
- }
}
EXPORT_SYMBOL_GPL(ps3fb_flip_ctl);
@@ -786,8 +783,7 @@ static int ps3fb_ioctl(struct fb_info *info, unsigned int
cmd,
case PS3FB_IOCTL_OFF:
DPRINTK("PS3FB_IOCTL_OFF:\n");
- if (atomic_read(&ps3fb.ext_flip) > 0)
- atomic_dec(&ps3fb.ext_flip);
+ atomic_dec_if_positive(&ps3fb.ext_flip);
retval = 0;
break;
-
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