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can: esd_usb2: 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>
Martin Kelly 7 years ago
parent
commit
7a31ced3de
1 changed files with 2 additions and 0 deletions
  1. 2 0
      drivers/net/can/usb/esd_usb2.c

+ 2 - 0
drivers/net/can/usb/esd_usb2.c

@@ -393,6 +393,8 @@ static void esd_usb2_read_bulk_callback(struct urb *urb)
 		break;
 
 	case -ENOENT:
+	case -EPIPE:
+	case -EPROTO:
 	case -ESHUTDOWN:
 		return;