kernel: swconfig: add a missing unlock in error path

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28753 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic/files/drivers/net/phy/swconfig.c b/target/linux/generic/files/drivers/net/phy/swconfig.c
index 88fa244..2038330 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/swconfig.c
+++ b/target/linux/generic/files/drivers/net/phy/swconfig.c
@@ -894,8 +894,10 @@ register_switch(struct switch_dev *dev, struct net_device *netdev)
        }
        i = find_first_zero_bit(&in_use, max_switches);
 
-       if (i == max_switches)
+       if (i == max_switches) {
+               swconfig_unlock();
                return -ENFILE;
+       }
 
        /* fill device name */
        snprintf(dev->devname, IFNAMSIZ, SWCONFIG_DEVNAME, i);