[PATCH] drm/amdgpu: Only create mes event log debugfs when mes is enabled

[shaoyunl]

Skip the debugfs file creation for mes event log if the GPU
doesn't use MES. This to prevent potential kernel oops when
user try to read the event log in debugfs on a GPU without MES

Signed-off-by: shaoyunl <shaoyun.liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 0626ac0192a8..dd2b8f3fa2f1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -1565,9 +1565,9 @@ void amdgpu_debugfs_mes_event_log_init(struct amdgpu_device *adev)
 #if defined(CONFIG_DEBUG_FS)
 	struct drm_minor *minor = adev_to_drm(adev)->primary;
 	struct dentry *root = minor->debugfs_root;
-
-	debugfs_create_file("amdgpu_mes_event_log", 0444, root,
-			    adev, &amdgpu_debugfs_mes_event_log_fops);
+	if (adev->enable_mes)
+		debugfs_create_file("amdgpu_mes_event_log", 0444, root,
+				    adev, &amdgpu_debugfs_mes_event_log_fops);
 
 #endif
 }
-- 
2.34.1