4.14-stable review patch. If anyone has any objections, please let me know.
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From: Martin Kelly mkelly@xevo.com
commit 1cb35a33a28394fd711bb26ddf3a564f4e9d9125 upstream.
Currently, when you disconnect the device, the driver infinitely resubmits all URBs, so you see:
Rx URB aborted (-32)
in an infinite loop.
Fix this by catching -EPIPE (what we get in urb->status when the device disconnects) and not resubmitting.
With this patch, I can plug and unplug many times and the driver recovers correctly.
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
--- drivers/net/can/usb/mcba_usb.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -592,6 +592,7 @@ static void mcba_usb_read_bulk_callback( break;
case -ENOENT: + case -EPIPE: case -ESHUTDOWN: return;