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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 <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oliver Neukum 2020-08-05 14:07:09 +02:00 committed by David S. Miller
parent 11c5f6d2f2
commit abaf00ff04
1 changed files with 1 additions and 2 deletions
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3
drivers/net/usb/hso.c
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@ -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"); dev_warn(&net->dev, "Tx timed out.\n");
/* Tear the waiting frame off the list */ /* Tear the waiting frame off the list */
if (odev->mux_bulk_tx_urb && if (odev->mux_bulk_tx_urb)
(odev->mux_bulk_tx_urb->status == -EINPROGRESS))
usb_unlink_urb(odev->mux_bulk_tx_urb); usb_unlink_urb(odev->mux_bulk_tx_urb);
/* Update statistics */ /* Update statistics */