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authorMartin Kelly <mkelly@xevo.com>2017-12-05 22:15:48 +0300
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-12-08 12:45:11 +0300
commit7a31ced3de06e9878e4f9c3abe8f87d9344d8144 (patch)
tree2cc9b82d8a258e6bd77e01110072b9eb70e63dd4 /drivers
parentbd352e1adfe0d02d3ea7c8e3fb19183dc317e679 (diff)
downloadlinux-7a31ced3de06e9878e4f9c3abe8f87d9344d8144.tar.xz
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')
-rw-r--r--drivers/net/can/usb/esd_usb2.c2
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;