On Sun, Jun 28, 2026 at 09:33:44PM +0800, WenTao Liang wrote:
> drm_dp_add_mst_branch_device initializes mstb with refcount 1, and
> drm_dp_mst_topology_get_mstb increments it to 2. When
> drm_dp_dpcd_write_byte fails, out_unlock performs only one
> drm_dp_mst_topology_put_mstb, leaving the other reference stored in
> mgr->mst_primary. Since MST was not successfully enabled, no disable path
> will clean it up.
>
> Suggested-by: Greg KH <[email protected]>
I did? Where did I do that?
> Fixes: 7a3cbf590e63 ("drm/mst: Some style improvements in
> drm_dp_mst_topology_mgr_set_mst()")
> Cc: [email protected]
> Signed-off-by: WenTao Liang <[email protected]>
Again, you need to document the tools you used to find/fix this with
assisted-by, right? Please read our documentation for when you use
LLMs.
thanks,
greg k-h
