提交 6aa8d594 编写于 作者: M Martin Kelly 提交者: Marc Kleine-Budde

can: kvaser_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: NMartin Kelly <mkelly@xevo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
上级 7a31ced3
...@@ -1326,6 +1326,8 @@ static void kvaser_usb_read_bulk_callback(struct urb *urb) ...@@ -1326,6 +1326,8 @@ static void kvaser_usb_read_bulk_callback(struct urb *urb)
case 0: case 0:
break; break;
case -ENOENT: case -ENOENT:
case -EPIPE:
case -EPROTO:
case -ESHUTDOWN: case -ESHUTDOWN:
return; return;
default: default:
......
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