We need to return a new sgt, since the caller takes ownership of it.
Reported-by: Stanimir Varbanov <svarbanov at mm-sol.com>
Signed-off-by: Rob Clark <robdclark at gmail.com>
---
drivers/gpu/drm/msm/msm_gem_prime.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_gem_prime.c
b/drivers/gpu/drm/msm/msm_gem_prime.c
index dd7a7ab..831461b 100644
--- a/drivers/gpu/drm/msm/msm_gem_prime.c
+++ b/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)
--
2.4.3
