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drm/amdgpu/fence: fix ref count leak when pm_runtime_get_sync fails

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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.

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2020-06-17 14:50:02 -04:00
parent 888e32d711
commit e520d3e0d2
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
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@@ -755,8 +755,10 @@ static int amdgpu_debugfs_gpu_recover(struct seq_file *m, void *data)
int r;
r = pm_runtime_get_sync(dev->dev);
if (r < 0)
if (r < 0) {
pm_runtime_put_autosuspend(dev->dev);
return 0;
}
seq_printf(m, "gpu recover\n");
amdgpu_device_gpu_recover(adev, NULL);