diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-09-15 09:41:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 08:51:08 -0800 |
| commit | 755a4897be165bc3b705ee6f83bda2253528b196 (patch) | |
| tree | 4870acae9c0ccff8d34edaa136d5ac4cdcd53ae7 | |
| parent | d1879e35935a07a67420fab66a02ae3b4148960f (diff) | |
drm/i915: Reduce a pin-leak BUG into a WARN
commit 7e81a42e341a4f15d76624b7c02ffb21b085b56f upstream.
Pin-leaks persist and we get the perennial bug reports of machine
lockups to the BUG_ON(pin_count==MAX). If we instead loudly report that
the object cannot be pinned at that time it should prevent the driver from
locking up, and hopefully restore a semblance of working whilst still
leaving us a OOPS to debug.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 72354455703..a230a93935b 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3318,7 +3318,8 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj, struct drm_i915_private *dev_priv = dev->dev_private; int ret; - BUG_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT); + if (WARN_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT)) + return -EBUSY; WARN_ON(i915_verify_lists(dev)); if (obj->gtt_space != NULL) { |