Commit 008b3f1f authored by Dave Airlie's avatar Dave Airlie

Merge tag 'drm-amdkfd-fixes-2015-07-09' of...

Merge tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes

A single fix so far for 4.2:
- checking a pointer is not null before using it

* tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: validate pdd where it acquired first
parents 9d5715f9 a0f67441
...@@ -420,6 +420,12 @@ void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid) ...@@ -420,6 +420,12 @@ void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid)
pqm_uninit(&p->pqm); pqm_uninit(&p->pqm);
pdd = kfd_get_process_device_data(dev, p); pdd = kfd_get_process_device_data(dev, p);
if (!pdd) {
mutex_unlock(&p->mutex);
return;
}
if (pdd->reset_wavefronts) { if (pdd->reset_wavefronts) {
dbgdev_wave_reset_wavefronts(pdd->dev, p); dbgdev_wave_reset_wavefronts(pdd->dev, p);
pdd->reset_wavefronts = false; pdd->reset_wavefronts = false;
...@@ -431,8 +437,7 @@ void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid) ...@@ -431,8 +437,7 @@ void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid)
* We don't call amd_iommu_unbind_pasid() here * We don't call amd_iommu_unbind_pasid() here
* because the IOMMU called us. * because the IOMMU called us.
*/ */
if (pdd) pdd->bound = false;
pdd->bound = false;
mutex_unlock(&p->mutex); mutex_unlock(&p->mutex);
} }
......
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