diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/msm/msm_gem_prime.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/msm/msm_gem_prime.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/drivers/gpu/drm/msm/msm_gem_prime.c b/kernel/drivers/gpu/drm/msm/msm_gem_prime.c index dd7a7ab60..121975b07 100644 --- a/kernel/drivers/gpu/drm/msm/msm_gem_prime.c +++ b/kernel/drivers/gpu/drm/msm/msm_gem_prime.c @@ -23,8 +23,12 @@ struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj) { struct msm_gem_object *msm_obj = to_msm_bo(obj); - BUG_ON(!msm_obj->sgt); /* should have already pinned! */ - return msm_obj->sgt; + int npages = obj->size >> PAGE_SHIFT; + + if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */ + return NULL; + + return drm_prime_pages_to_sg(msm_obj->pages, npages); } void *msm_gem_prime_vmap(struct drm_gem_object *obj) @@ -41,9 +45,7 @@ int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) { int ret; - mutex_lock(&obj->dev->struct_mutex); ret = drm_gem_mmap_obj(obj, obj->size, vma); - mutex_unlock(&obj->dev->struct_mutex); if (ret < 0) return ret; |