[ldv-project] [PATCH] usb/kaweth: use GFP_ATOMIC under spin_lock in usb_start_wait_urb()

Oliver Neukum oliver at neukum.org
Mon Jan 12 16:37:10 MSK 2015


On Sat, 2015-01-10 at 02:16 +0300, Alexey Khoroshilov wrote:
> Commit e4c7f259c5be ("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 at ispras.ru>

Acked-by: Oliver Neukum <oliver at neukum.org>




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