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| author | Gustavo A. R. Silva <garsilva@embeddedor.com> | 2018-02-02 13:32:23 +0100 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-03-19 11:33:34 +0100 |
| commit | 5abc7dd7b5a0f51a6c7d9cb3ce72b910ba3cef7b (patch) | |
| tree | 82d1c7f88289c6159ce282679c37c50d4ecfcf0c /drivers/gpu/drm/msm | |
| parent | drm/msm/dsi: Get byte_intf_clk only for versions that need it (diff) | |
| download | linux-5abc7dd7b5a0f51a6c7d9cb3ce72b910ba3cef7b.tar.xz linux-5abc7dd7b5a0f51a6c7d9cb3ce72b910ba3cef7b.zip | |
drm/msm/adreno/a5xx_debugfs: fix potential NULL pointer dereference
_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>
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_debugfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c b/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c index 6b279414b9c0..059ec7d394d0 100644 --- a/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c +++ b/drivers/gpu/drm/msm/adreno/a5xx_debugfs.c @@ -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); |