drm/amdgpu: return early if debugfs is not initialized

Check first if debugfs is initialized before creating
amdgpu debugfs files.

References: https://gitlab.freedesktop.org/drm/amd/-/issues/1686
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 6611b3c7c1498d8dad4c98633200273405863ab4..5497e2d31d1a3236c857c3afafd4c8e702f5563e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1617,6 +1617,9 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev)
        struct dentry *ent;
        int r, i;
 
+       if (!debugfs_initialized())
+               return 0;
+
        ent = debugfs_create_file("amdgpu_preempt_ib", 0600, root, adev,
                                  &fops_ib_preempt);
        if (IS_ERR(ent)) {