Commit 49c9e7c2 authored Jan 10, 2015 by Alexey Khoroshilov Committed by David S. Miller Jan 12, 2015

usb/kaweth: use GFP_ATOMIC under spin_lock in usb_start_wait_urb()



Commit e4c7f259 ("USB: kaweth.c: use GFP_ATOMIC under spin_lock")
makes sure that kaweth_internal_control_msg() allocates memory with GFP_ATOMIC,
but kaweth_internal_control_msg() also calls usb_start_wait_urb()
that still allocates memory with GFP_NOIO.

The patch fixes usb_start_wait_urb() as well.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent eddd63a6

drivers/net/usb/kaweth.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1276,7 +1276,7 @@ static int usb_start_wait_urb(struct urb urb, int timeout, int actual_length)
		awd.done = 0;

		urb->context = &awd;
		status = usb_submit_urb(urb, GFP_NOIO);
		status = usb_submit_urb(urb, GFP_ATOMIC);
		if (status) {
		// something went wrong
		usb_free_urb(urb);