[PATCH 1/2] drm/amdgpu/debugfs: fix memory leak when pm_runtime_get_sync failed

[Chen Tao]

Fix memory leak in amdgpu_debugfs_gpr_read not freeing data when
pm_runtime_get_sync failed.

Fixes: a9ffe2a983383 ("drm/amdgpu/debugfs: properly handle runtime pm")
Signed-off-by: Chen Tao <chentao107 at huawei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 1a4894fa3693..bea8c36a53a4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -862,8 +862,10 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
 		return -ENOMEM;
 
 	r = pm_runtime_get_sync(adev->ddev->dev);
-	if (r < 0)
+	if (r < 0) {
+		kfree(data);
 		return r;
+	}
 
 	r = amdgpu_virt_enable_access_debugfs(adev);
 	if (r < 0)
-- 
2.22.0