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can: gs_usb: fix return value of the "set_bittiming" callback

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The "set_bittiming" callback treats a positive return value as error!
For that reason "can_changelink()" will quit silently after setting
the bittiming values without processing ctrlmode, restart-ms, etc.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Wolfgang Grandegger 2017-12-13 19:52:23 +01:00 • committed by Marc Kleine-Budde
parent b4c2951a48
commit d5b42e6607
1 changed files with 1 additions and 1 deletions
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2
drivers/net/can/usb/gs_usb.c
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@ -449,7 +449,7 @@ static int gs_usb_set_bittiming(struct net_device *netdev)
dev_err(netdev->dev.parent, "Couldn't set bittimings (err=%d)",
rc);
return rc;
return (rc > 0) ? 0 : rc;
}
static void gs_usb_xmit_callback(struct urb *urb)