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drm/i915: Be paranoid and bail on resetting if we can't take the lock.

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This will declare the machine wedged, but is better than truly wedging
the machine.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-12-04 18:17:15 +00:00
parent 4add75c43f
commit 340479aac6
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_drv.c
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@ -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);