in amdgpu_drm_ioctl 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.emamdo...@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 126e74758a34..d73924e35a57 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1373,11 +1373,12 @@ long amdgpu_drm_ioctl(struct file *filp,
        dev = file_priv->minor->dev;
        ret = pm_runtime_get_sync(dev->dev);
        if (ret < 0)
-               return ret;
+               goto out;
 
        ret = drm_ioctl(filp, cmd, arg);
 
        pm_runtime_mark_last_busy(dev->dev);
+out:
        pm_runtime_put_autosuspend(dev->dev);
        return ret;
 }
-- 
2.17.1

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