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authorMartin Kelly <mkelly@xevo.com>2017-12-05 10:34:03 -0800
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-12-08 10:45:11 +0100
commitc7f33023308f3142433b7379718af5f0c2c322a6 (patch)
tree41e92dbb68dae37e1a89954aeb1cc3530e9e062c /drivers/net/can
parent195bd525d5f6e338b948d9a6b25bfaae86291353 (diff)
can: mcba_usb: cancel urb on -EPROTO
When we unplug the device, we can see both -EPIPE and -EPROTO depending on exact timing and what system we run on. If we continue to resubmit URBs, they will immediately fail, and they can cause stalls, especially on slower CPUs. Fix this by not resubmitting on -EPROTO, as we already do on -EPIPE. 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/mcba_usb.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c
index ef417dcddbf7..8d8c2086424d 100644
--- a/drivers/net/can/usb/mcba_usb.c
+++ b/drivers/net/can/usb/mcba_usb.c
@@ -593,6 +593,7 @@ static void mcba_usb_read_bulk_callback(struct urb *urb)
case -ENOENT:
case -EPIPE:
+ case -EPROTO:
case -ESHUTDOWN:
return;