diff mbox series

[2/2] drm/msm: uninitialized variable in msm_gem_import()

Message ID 20211013081315.GG6010@kili (mailing list archive)
State Not Applicable
Headers show
Series [1/2] drm/msm: fix potential NULL dereference in cleanup | expand

Commit Message

Dan Carpenter Oct. 13, 2021, 8:13 a.m. UTC 
The msm_gem_new_impl() function cleans up after itself so there is no
need to call drm_gem_object_put().  Conceptually, it does not make sense
to call a kref_put() function until after the reference counting has
been initialized which happens immediately after this call in the
drm_gem_(private_)object_init() functions.

In the msm_gem_import() function the "obj" pointer is uninitialized, so
it will lead to a crash.

Fixes: 05b849111c07 ("drm/msm: prime support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/gpu/drm/msm/msm_gem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 49185d524be3..0e491cd21c53 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -1167,7 +1167,7 @@  struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32
 
 	ret = msm_gem_new_impl(dev, size, flags, &obj);
 	if (ret)
-		goto fail;
+		return ERR_PTR(ret);
 
 	msm_obj = to_msm_bo(obj);
 
@@ -1251,7 +1251,7 @@  struct drm_gem_object *msm_gem_import(struct drm_device *dev,
 
 	ret = msm_gem_new_impl(dev, size, MSM_BO_WC, &obj);
 	if (ret)
-		goto fail;
+		return ERR_PTR(ret);
 
 	drm_gem_private_object_init(dev, obj, size);