@@ -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,
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> --- drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)