Commit 338124c1 authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman
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usb: cdc-wdm: Fix deadlock between write and resume 



The new runtime PM scheme allows resume() to have no locks.
This fixes the deadlock.

Signed-off-by: default avatarOliver Neukum <neukum@b1-systems.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent d93d16e9

drivers/usb/class/cdc-wdm.c

+2 −2
Original line number Diff line number Diff line
@@ -839,10 +839,10 @@ static int wdm_resume(struct usb_interface *intf) 
	int rv;



	dev_dbg(&desc->intf->dev, "wdm%d_resume\n", intf->minor);

	mutex_lock(&desc->lock);



	clear_bit(WDM_SUSPENDING, &desc->flags);

	rv = recover_from_urb_loss(desc);

	mutex_unlock(&desc->lock);



	return rv;

}

#endif