From abaf00ff04625275a40e407fc8da04948ae4f95b Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Wed, 5 Aug 2020 14:07:09 +0200 Subject: [PATCH] usb: hso: remove bogus check for EINPROGRESS This check an inherent race. It opens a race where an error code has already been set or cleared yet the URB has not been given back. We cannot do such an optimization and must unlink unconditionally. Signed-off-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/hso.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 5762876e3105..2bb28db89432 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -831,8 +831,7 @@ static void hso_net_tx_timeout(struct net_device *net, unsigned int txqueue) dev_warn(&net->dev, "Tx timed out.\n"); /* Tear the waiting frame off the list */ - if (odev->mux_bulk_tx_urb && - (odev->mux_bulk_tx_urb->status == -EINPROGRESS)) + if (odev->mux_bulk_tx_urb) usb_unlink_urb(odev->mux_bulk_tx_urb); /* Update statistics */