On Fri, 27 Apr 2012, Oliver Neukum wrote: > From 9ff6b78dc59c98b9844dc9922549fd338828a889 Mon Sep 17 00:00:00 2001 > From: Oliver Neukum <oliver@xxxxxxxxxx> > Date: Wed, 25 Apr 2012 12:50:37 +0200 > Subject: [PATCH] usbhid: prevent deadlock during timeout > > On some HCDs usb_unlink_urb() can directly call the > completion handler. That limits the spinlocks that can > be taken in the handler to locks not held while calling > usb_unlink_urb() > To prevent a race with resubmission, this patch exposes > usbcore's infrastructure for blocking submission, uses it > and so drops the lock without causing a race in usbhid. > > Signed-off-by: Oliver Neukum <oneukum@xxxxxxx> > --- > > As Greg is taking the whole patch it makes no sense to split it up. > > drivers/hid/usbhid/hid-core.c | 61 +++++++++++++++++++++++++++++++++++++---- For the HID part: Acked-by: Jiri Kosina <jkosina@xxxxxxx> Thanks, -- Jiri Kosina SUSE Labs -- 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
