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Commit 7ffd7b4e authored by Viktor Babrian's avatar Viktor Babrian Committed by Marc Kleine-Budde
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can: c_can: end pending transmission on network stop (ifdown) 



Put controller into init mode in network stop to end pending transmissions. The
issue is observed in cases when transmitted frame is not acked.

Signed-off-by: default avatarViktor Babrian <babrian.viktor@renyi.mta.hu>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 06efe0e5

drivers/net/can/c_can/c_can.c

+3 −0
Original line number Diff line number Diff line
@@ -615,6 +615,9 @@ static void c_can_stop(struct net_device *dev) 


	c_can_irq_control(priv, false);



	/* put ctrl to init on stop to end ongoing transmission */

	priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_INIT);



	/* deactivate pins */

	pinctrl_pm_select_sleep_state(dev->dev.parent);

	priv->can.state = CAN_STATE_STOPPED;