diff options
| author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 11:15:48 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-14 09:28:10 +0100 |
| commit | 0cdac09e6aeefed8058e913943c7c8765017afdc (patch) | |
| tree | f799649a6127d232e1e7440a0bff2120ecc50105 | |
| parent | d3b72254789fd96701ef06778a3fc5c4a3d24cbe (diff) | |
can: esd_usb2: cancel urb on -EPIPE and -EPROTO
commit 7a31ced3de06e9878e4f9c3abe8f87d9344d8144 upstream.
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>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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; |