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drm/msm/adreno/a5xx_debugfs: fix potential NULL pointer dereference

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_minor_ is being dereferenced before it is null checked, hence there
is a potential null pointer dereference. Fix this by moving the pointer
dereference after _minor_ has been null checked.

Fixes: 024ad8df763f ("drm/msm: add a5xx specific debugfs")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Gustavo A. R. Silva 2018-02-02 06:32:23 -06:00 committed by Rob Clark
parent fb48989edb
commit 5abc7dd7b5
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/msm/adreno/a5xx_debugfs.c
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@ -159,13 +159,15 @@ DEFINE_SIMPLE_ATTRIBUTE(reset_fops, NULL, reset_set, "%llx\n");
int a5xx_debugfs_init(struct msm_gpu *gpu, struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
struct drm_device *dev;
struct dentry *ent;
int ret;
if (!minor)
return 0;
dev = minor->dev;
ret = drm_debugfs_create_files(a5xx_debugfs_list,
ARRAY_SIZE(a5xx_debugfs_list),
minor->debugfs_root, minor);