From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> This patch (as1640) fixes a memory leak in xhci-hcd. The urb_priv data structure isn't always deallocated in the handle_tx_event() routine for non-control transfers. The patch adds a kfree() call so that all paths end up freeing the memory properly. This patch should be backported to kernels as old as 2.6.36, that contain the commit 8e51adccd4c4b9ffcd509d7f2afce0a906139f75 "USB: xHCI: Introduce urb_priv structure" Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx> Reported-and-tested-by: Martin Mokrejs <mmokrejs@xxxxxxxxxxxxxxxxxx> CC: <stable@xxxxxxxxxxxxxxx> --- drivers/usb/host/xhci-ring.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 1512046..7f76a49 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2589,6 +2589,8 @@ cleanup: (trb_comp_code != COMP_STALL && trb_comp_code != COMP_BABBLE)) xhci_urb_free_priv(xhci, urb_priv); + else + kfree(urb_priv); usb_hcd_unlink_urb_from_ep(bus_to_hcd(urb->dev->bus), urb); if ((urb->actual_length != urb->transfer_buffer_length && -- 1.7.9 -- 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
