mailbox: arm_mhu_db: Remove redundant mbox_controller_unregister() on probe failure

mhu_db_probe() registers the mailbox controller via
devm_mbox_controller_register(), which automatically calls
mbox_controller_unregister() through devres when the device is removed
or probe fails. If devm_request_threaded_irq() subsequently fails in
the channel setup loop, the error path also manually calls
mbox_controller_unregister(), resulting in a double call that corrupts
the global mailbox controller list and causes a kernel panic.

Remove the redundant manual call and rely on devres for cleanup.

Fixes: 7002ca237b21 ("mailbox: arm_mhu: Add ARM MHU doorbell driver")
Signed-off-by: Anup Vishwakarma <anup.vishwakarma@oss.qualcomm.com>
Reviewed-by: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>

0 files changed, 0 insertions, 0 deletions