From: Gavin Li <git@xxxxxxxxxxxxxx> Memory usage for USB memory allocated via mmap() is already accounted for at mmap() time; no need to account for it again at submiturb time. Signed-off-by: Gavin Li <git@xxxxxxxxxxxxxx> --- drivers/usb/core/devio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index bbe9c2edd3e7..9681dd55473b 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1603,7 +1603,8 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb if (as->usbm) num_sgs = 0; - u += sizeof(struct async) + sizeof(struct urb) + uurb->buffer_length + + u += sizeof(struct async) + sizeof(struct urb) + + (as->usbm ? 0 : uurb->buffer_length) + num_sgs * sizeof(struct scatterlist); ret = usbfs_increase_memory_usage(u); if (ret) -- 2.22.0
