From: Hayes Wang <hayeswang@xxxxxxxxxxx> Date: Tue, 7 Oct 2014 13:36:30 +0800 > Use mutex to avoid that the serial hw settings would be interrupted > by other settings. Although there is no problem now, it makes the > driver more safe. > > Signed-off-by: Hayes Wang <hayeswang@xxxxxxxxxxx> I think a much simpler fix is to take rtnl_lock() in the workqueue function and suspend/resume ops. Every other place you are adding the mutex already holds the RTNL mutex. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
