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authorRobert Hancock <hancock@sedsystems.ca>2019-06-06 16:28:19 -0600
committerDavid S. Miller <davem@davemloft.net>2019-06-06 16:24:30 -0700
commit70c50265c46b7f44823313b87e7e3a3808489c5d (patch)
treec2fe9fce4481123c363da7d5242615f8c5137172 /drivers/net/ethernet/xilinx
parentd05a9ed5c3a7739b7ece9ea81617c6fc74de10f0 (diff)
downloadlinux-70c50265c46b7f44823313b87e7e3a3808489c5d.tar.bz2
net: axienet: stop interface during shutdown
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>
Diffstat (limited to 'drivers/net/ethernet/xilinx')
-rw-r--r--drivers/net/ethernet/xilinx/xilinx_axienet_main.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 6e75c4320f80..d138db8d6e7a 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -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,