[PATCH] drm/radeon: fix error handling in radeon_vm_bo_set_addr

[Christian König]

From: Christian K?nig <christian.koe...@amd.com>

Signed-off-by: Christian K?nig <christian.koenig at amd.com>
---
 drivers/gpu/drm/radeon/radeon_vm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_vm.c 
b/drivers/gpu/drm/radeon/radeon_vm.c
index fa41e0d7..725d366 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -472,6 +472,10 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
        if (bo_va->soffset) {
                /* add a clone of the bo_va to clear the old address */
                tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
+               if (!tmp) {
+                       mutex_unlock(&vm->mutex);
+                       return -ENOMEM;
+               }
                tmp->soffset = bo_va->soffset;
                tmp->eoffset = bo_va->eoffset;
                tmp->vm = vm;
-- 
1.9.1