diff options
| author |   Martin Kelly <mkelly@xevo.com> | 2017-12-05 11:15:50 -0800 |
|---|---|---|
| committer |   Marc Kleine-Budde <mkl@pengutronix.de> | 2017-12-08 10:45:11 +0100 |
| commit | 12147edc434c9e4c7c2f5fee2e5519b2e5ac34ce (patch) | |
| tree | a72c9a35cba12f852ee6b4d8c0538b4909364dd3 /drivers/net/can/usb/usb_8dev.c | |
| parent | can: kvaser_usb: cancel urb on -EPIPE and -EPROTO (diff) | |
| download | linux-dev-12147edc434c9e4c7c2f5fee2e5519b2e5ac34ce.tar.xz linux-dev-12147edc434c9e4c7c2f5fee2e5519b2e5ac34ce.zip | |
can: usb_8dev: cancel urb on -EPIPE and -EPROTO
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>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/usb/usb_8dev.c')
| -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 d000cb62d6ae..27861c417c94 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; |