diff options
| author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 22:15:48 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-16 12:33:47 +0300 |
| commit | 191b419bd0b11d8ec204f0bbd9e0f930f099a386 (patch) | |
| tree | e35db6608ecf3e39f2dc73516d80ebbd83283c11 /drivers/net/can/usb | |
| parent | af11f3afc2c2557fcc66b2649ef251e99253e51a (diff) | |
| download | linux-191b419bd0b11d8ec204f0bbd9e0f930f099a386.tar.xz | |
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>
Diffstat (limited to 'drivers/net/can/usb')
| -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 4c6707ecc619..afa5b4a7a4a2 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; |