diff options
| author | Martin Kelly <mkelly@xevo.com> | 2017-12-05 22:15:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-14 11:52:47 +0300 |
| commit | e7a80033fd226b71bd49602052ff8242355fd4a5 (patch) | |
| tree | 00020dcd492d2f059e66b124d43b0d30f67ed7a2 /drivers/net/can/usb | |
| parent | b96f17231dca5ddc2136999ca147cdeb842b2664 (diff) | |
| download | linux-e7a80033fd226b71bd49602052ff8242355fd4a5.tar.xz | |
can: ems_usb: cancel urb on -EPIPE and -EPROTO
commit bd352e1adfe0d02d3ea7c8e3fb19183dc317e679 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/ems_usb.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index b3d02759c226..b00358297424 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -288,6 +288,8 @@ static void ems_usb_read_interrupt_callback(struct urb *urb) case -ECONNRESET: /* unlink */ case -ENOENT: + case -EPIPE: + case -EPROTO: case -ESHUTDOWN: return; |