diff options
| author | Roy Spliet <nouveau@spliet.org> | 2020-04-07 18:07:37 +0100 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2020-05-18 09:26:32 -0700 |
| commit | e4337877c5d578722c0716f131fb774522013cf5 (patch) | |
| tree | 6ba211861efc2284fb9ba5865eee3c8ef5652cb2 /drivers/gpu/drm/msm | |
| parent | e4b397f6a54c1b653b65c3dbcf3d3a157f580355 (diff) | |
| download | linux-e4337877c5d578722c0716f131fb774522013cf5.tar.bz2 | |
drm/msm/mdp5: Fix mdp5_init error path for failed mdp5_kms allocation
When allocation for mdp5_kms fails, calling mdp5_destroy() leads to undefined
behaviour, likely a nullptr exception or use-after-free troubles.
Signed-off-by: Roy Spliet <nouveau@spliet.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c index 47b989834af1..c23a2fa13fb9 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c @@ -943,7 +943,8 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev) return 0; fail: - mdp5_destroy(pdev); + if (mdp5_kms) + mdp5_destroy(pdev); return ret; } |