redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/atomic: Make sure lock is held in trylock contexts. 

This will make sure we get a lockdep spat in all cases
even if the context is a complete garbage pointer.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Maarten Lankhorst 2015-08-27 13:58:09 +02:00 committed by Daniel Vetter
parent 53edb2c62e
commit 825926d8e0
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/drm_modeset_lock.c
View File

@ -307,6 +307,8 @@ static inline int modeset_lock(struct drm_modeset_lock *lock,
WARN_ON(ctx->contended);
if (ctx->trylock_only) {
lockdep_assert_held(&ctx->ww_ctx);
if (!ww_mutex_trylock(&lock->mutex))
return -EBUSY;
else