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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-04 18:17:15 (GMT) |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-12-05 00:37:38 (GMT) |
| commit | 340479aac697bc73e225c122a9753d4964eeda3f (patch) | |
| tree | d7ae627640d4c964c6090aa18daae3d22a223be1 | |
| parent | 4add75c43f39573edc884d46b7c2b7414f01171a (diff) | |
| download | linux-fsl-qoriq-340479aac697bc73e225c122a9753d4964eeda3f.tar.xz | |
drm/i915: Be paranoid and bail on resetting if we can't take the lock.
This will declare the machine wedged, but is better than truly wedging
the machine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1a15b78..64844e2 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -440,7 +440,8 @@ int i915_reset(struct drm_device *dev, u8 flags) bool need_display = true; int ret; - mutex_lock(&dev->struct_mutex); + if (!mutex_trylock(&dev->struct_mutex)) + return -EBUSY; i915_gem_reset(dev); |