ionic: check port ptr before use (2bcbf42a) · Commits · 戴 / test

Check for corner case of port_init failure before using the port_info pointer. Fixes: ("ionic: Add initial ethtool support") Signed-off-by:

drivers/net/ethernet/pensando/ionic/ionic_ethtool.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -126,6 +126,11 @@ static int ionic_get_link_ksettings(struct net_device *netdev,

		ethtool_link_ksettings_zero_link_mode(ks, supported);

		if (!idev->port_info) {
		netdev_err(netdev, "port_info not initialized\n");
		return -EOPNOTSUPP;
		}

		/* The port_info data is found in a DMA space that the NIC keeps
		* up-to-date, so there's no need to request the data from the
		* NIC, we already have it in our memory space.