diff options
author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 14:15:48 -0500 |
---|---|---|
committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2017-12-08 04:45:11 -0500 |
commit | 7a31ced3de06e9878e4f9c3abe8f87d9344d8144 (patch) | |
tree | 2cc9b82d8a258e6bd77e01110072b9eb70e63dd4 | |
parent | bd352e1adfe0d02d3ea7c8e3fb19183dc317e679 (diff) |
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>
-rw-r--r-- | drivers/net/can/usb/esd_usb2.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c index 9fdb0f0bfa06..c6dcf93675c0 100644 --- a/drivers/net/can/usb/esd_usb2.c +++ b/drivers/net/can/usb/esd_usb2.c | |||
@@ -393,6 +393,8 @@ static void esd_usb2_read_bulk_callback(struct urb *urb) | |||
393 | break; | 393 | break; |
394 | 394 | ||
395 | case -ENOENT: | 395 | case -ENOENT: |
396 | case -EPIPE: | ||
397 | case -EPROTO: | ||
396 | case -ESHUTDOWN: | 398 | case -ESHUTDOWN: |
397 | return; | 399 | return; |
398 | 400 | ||