diff options
| author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 20:15:48 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2017-12-08 10:45:11 +0100 |
| commit | 7a31ced3de06e9878e4f9c3abe8f87d9344d8144 (patch) | |
| tree | 2cc9b82d8a258e6bd77e01110072b9eb70e63dd4 /drivers/net/can | |
| parent | can: ems_usb: cancel urb on -EPIPE and -EPROTO (diff) | |
| download | linux-7a31ced3de06e9878e4f9c3abe8f87d9344d8144.tar.xz linux-7a31ced3de06e9878e4f9c3abe8f87d9344d8144.zip | |
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>
Diffstat (limited to 'drivers/net/can')
| -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) break; case -ENOENT: + case -EPIPE: + case -EPROTO: case -ESHUTDOWN: return; |