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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-18 13:45:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-08-18 13:45:48 -0700 |
| commit | bd3fd451ff3b205f0bde4d1bf7a310552c40d6e0 (patch) | |
| tree | aceca2fab7b29490405bfda1597e43573ffe99f6 /drivers | |
| parent | f28535c100e3c3066ed3506d90948cf023dad21a (diff) | |
| parent | 112dc0c8069e5554e0ad29c58228f1e6ca49e13d (diff) | |
| download | lwn-bd3fd451ff3b205f0bde4d1bf7a310552c40d6e0.tar.gz lwn-bd3fd451ff3b205f0bde4d1bf7a310552c40d6e0.zip | |
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
"Two lockless_dereference() related fixes"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/barriers: Suppress sparse warnings in lockless_dereference()
Revert "drm/fb-helper: Reduce READ_ONCE(master) to lockless_dereference"
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_helper.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index ce54e985d91b..0a06f9120b5a 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -464,7 +464,7 @@ static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper) /* Sometimes user space wants everything disabled, so don't steal the * display if there's a master. */ - if (lockless_dereference(dev->master)) + if (READ_ONCE(dev->master)) return false; drm_for_each_crtc(crtc, dev) { |