Return value of function drm_vma_node_allow_once(),
called at i915_gem_mman.c:672, is not checked.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Alexandr Sapozhnikov <alsp705@gmail.com>
---
drivers/gpu/drm/i915/gem/i915_gem_mman.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index 75f5b0e871ef..eb76f8f2bd95 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -758,8 +758,11 @@ mmap_offset_attach(struct drm_i915_gem_object *obj,
mmo = insert_mmo(obj, mmo);
GEM_BUG_ON(lookup_mmo(obj, mmap_type) != mmo);
out:
- if (file)
- drm_vma_node_allow_once(&mmo->vma_node, file);
+ if (file) {
+ err = drm_vma_node_allow_once(&mmo->vma_node, file);
+ if (err)
+ goto err;
+ }
return mmo;
err:
--
2.43.0