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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-09-15 09:41:57 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-09-17 10:12:57 +0200 |
| commit | 7e81a42e341a4f15d76624b7c02ffb21b085b56f (patch) | |
| tree | a02e1d4ecb6636513109d9a6d7500b45b45d6f35 /drivers/gpu | |
| parent | 5b5896e4e1f353ef3dbc4e4e9ee44d53ccf105d7 (diff) | |
| download | op-kernel-dev-7e81a42e341a4f15d76624b7c02ffb21b085b56f.zip op-kernel-dev-7e81a42e341a4f15d76624b7c02ffb21b085b56f.tar.gz | |
drm/i915: Reduce a pin-leak BUG into a WARN
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>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
| -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 489e2b1..274d25d 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3242,7 +3242,8 @@ i915_gem_object_pin(struct drm_i915_gem_object *obj, { 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; if (obj->gtt_space != NULL) { if ((alignment && obj->gtt_offset & (alignment - 1)) || |
