Re: [PATCH v2 2/2] firmware: Avoid deadlock of usermodehelper lock at shutdown

2013-05-22 Thread Ming Lei
On Thu, May 23, 2013 at 12:28 AM, Takashi Iwai wrote: > When a system goes to reboot/shutdown, it tries to disable the > usermode helper via usermodehelper_disable(). This might be blocked > when a driver tries to load a firmware beforehand and it's stuck by > some reason. For example, dell_rbu

[PATCH v2 2/2] firmware: Avoid deadlock of usermodehelper lock at shutdown

2013-05-22 Thread Takashi Iwai
When a system goes to reboot/shutdown, it tries to disable the usermode helper via usermodehelper_disable(). This might be blocked when a driver tries to load a firmware beforehand and it's stuck by some reason. For example, dell_rbu driver loads the firmware in non-hotplug mode and waits for use