net: axienet: stop interface during shutdown (70c50265) · Commits · 戴 / test

On some platforms, such as iMX6 with PCIe devices, crashes or hangs can occur if the axienet device continues to perform DMA transfers after parent devices/busses have been shut down. Shut down the axienet interface during its shutdown callback in order to avoid this. Signed-off-by:

Robert Hancock <hancock@sedsystems.ca> Signed-off-by:

David S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -1797,9 +1797,23 @@ static int axienet_remove(struct platform_device *pdev)
		return 0;
		}

		static void axienet_shutdown(struct platform_device *pdev)
		{
		struct net_device *ndev = platform_get_drvdata(pdev);

		rtnl_lock();
		netif_device_detach(ndev);

		if (netif_running(ndev))
		dev_close(ndev);

		rtnl_unlock();
		}

		static struct platform_driver axienet_driver = {
		.probe = axienet_probe,
		.remove = axienet_remove,
		.shutdown = axienet_shutdown,
		.driver = {
		.name = "xilinx_axienet",
		.of_match_table = axienet_of_match,

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