diff options
| author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 11:15:50 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-16 10:33:48 +0100 |
| commit | d73fcef16da050b6a6db8c86d8f4a69836d9b5e7 (patch) | |
| tree | a7b31c2f085c4a3765642cb4b245e12732ce9aca | |
| parent | 191b419bd0b11d8ec204f0bbd9e0f930f099a386 (diff) | |
can: usb_8dev: cancel urb on -EPIPE and -EPROTO
commit 12147edc434c9e4c7c2f5fee2e5519b2e5ac34ce upstream.
In mcba_usb, we have observed that when you unplug the device, the driver will
endlessly resubmit failing URBs, which can cause CPU stalls. This issue
is fixed in mcba_usb by catching the codes seen on device disconnect
(-EPIPE and -EPROTO).
This driver also resubmits in the case of -EPIPE and -EPROTO, so fix it
in the same way.
Signed-off-by: Martin Kelly <mkelly@xevo.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/can/usb/usb_8dev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 449b2a47f9a8..522286cc0f9c 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -524,6 +524,8 @@ static void usb_8dev_read_bulk_callback(struct urb *urb) break; case -ENOENT: + case -EPIPE: + case -EPROTO: case -ESHUTDOWN: return; |