From 8b3b01c898a44c2fc7217eb579982b9d132113f5 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Wed, 13 Jun 2007 08:02:11 +0200 Subject: USB: Add URB_FREE_BUFFER flag and the logic behind it USB: Add URB_FREE_BUFFER flag for freeing the transfer buffer In some cases it is not needed that the driver keeps track of the transfer buffer of an URB. It can be simply freed along with the URB itself when the reference count goes down to zero. The new flag URB_FREE_BUFFER enables this behavior. Signed-off-by: Marcel Holtmann Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/urb.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index ac4273dddf34..52ec44b828f3 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -13,6 +13,9 @@ static void urb_destroy(struct kref *kref) { struct urb *urb = to_urb(kref); + if (urb->transfer_flags & URB_FREE_BUFFER) + kfree(urb->transfer_buffer); + kfree(urb); } -- cgit v1.2.1