drm/msm: fix potential submit error path issue

Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 635eff17c3d116545c75d3e1a4d5cd9d652a0fca..eb4bb8b2f3a5cae6799e1ef142af1be3da568e5d 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -77,6 +77,11 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
                void __user *userptr =
                        u64_to_user_ptr(args->bos + (i * sizeof(submit_bo)));
 
+               /* make sure we don't have garbage flags, in case we hit
+                * error path before flags is initialized:
+                */
+               submit->bos[i].flags = 0;
+
                ret = copy_from_user(&submit_bo, userptr, sizeof(submit_bo));
                if (ret) {
                        ret = -EFAULT;