diff options
| author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 20:15:47 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2017-12-08 10:45:11 +0100 |
| commit | bd352e1adfe0d02d3ea7c8e3fb19183dc317e679 (patch) | |
| tree | 0d1c5d339c5b3b9fe9732677a1de8d2d9341cfe9 /drivers | |
| parent | can: mcba_usb: cancel urb on -EPROTO (diff) | |
| download | linux-bd352e1adfe0d02d3ea7c8e3fb19183dc317e679.tar.xz linux-bd352e1adfe0d02d3ea7c8e3fb19183dc317e679.zip | |
can: ems_usb: 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')
| -rw-r--r-- | drivers/net/can/usb/ems_usb.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index b3d02759c226..b00358297424 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -288,6 +288,8 @@ static void ems_usb_read_interrupt_callback(struct urb *urb) case -ECONNRESET: /* unlink */ case -ENOENT: + case -EPIPE: + case -EPROTO: case -ESHUTDOWN: return; |