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| author | Navid Emamdoost <navid.emamdoost@gmail.com> | 2020-06-14 10:12:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-03 12:22:25 +0300 |
| commit | 59e0b73b5d90955ab24c0d56e6561d7485b10295 (patch) | |
| tree | 1c52f768756e9e47cb472bede3c4eb073bad41a2 /drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | |
| parent | a0f19b6175ddeb13f85b7a82c46c5a07c15a2b37 (diff) | |
| download | linux-59e0b73b5d90955ab24c0d56e6561d7485b10295.tar.xz | |
drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms
[ Upstream commit 9ba8923cbbe11564dd1bf9f3602add9a9cfbb5c6 ]
in amdgpu_driver_open_kms the call to pm_runtime_get_sync increments the
counter even in case of failure, leading to incorrect
ref count. In case of failure, decrement the ref count before returning.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 22d9ec80a2ff..b7ee5008b8a2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -785,7 +785,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) r = pm_runtime_get_sync(dev->dev); if (r < 0) - return r; + goto pm_put; fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL); if (unlikely(!fpriv)) { @@ -824,6 +824,7 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) out_suspend: pm_runtime_mark_last_busy(dev->dev); +pm_put: pm_runtime_put_autosuspend(dev->dev); return r; |