drm/i915: Make the lock for pageflips interruptible
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 23 May 2012 10:13:58 +0000 (11:13 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 20 Jul 2012 10:21:41 +0000 (12:21 +0200)
commit79158103bf20c9ff55204ceb78a5773f422b03be
tree520ff6549bc77a5e69ee0c7114def95af1516417
parenta4f32fc3a37e982fffce8ec583643990ff288419
drm/i915: Make the lock for pageflips interruptible

As we take the struct_mutex lock to access the command-stream, there is
a possibility that we may need to wait for a GPU hang and so should make
the lock both interruptible and error-checking.

References: https://bugs.freedesktop.org/show_bug.cgi?id=50069
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_display.c