diff mbox series

drm/amdgpu: Add missing pm_runtime_put_autosuspend

Message ID 1642507272-17545-1-git-send-email-lyz_cs@pku.edu.cn (mailing list archive)
State New, archived
Headers show
Series drm/amdgpu: Add missing pm_runtime_put_autosuspend | expand

Commit Message

刘永志 Jan. 18, 2022, 12:01 p.m. UTC
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code, thus a matching decrement is needed
on the error handling path to keep the counter balanced.

Signed-off-by: Yongzhi Liu <lyz_cs@pku.edu.cn>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 9aea1cc..4b950de 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1120,8 +1120,10 @@  static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf,
 		return -EINVAL;
 
 	r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
-	if (r < 0)
+	if (r < 0) {
+		pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
 		return r;
+	}
 
 	while (size) {
 		uint32_t value;