First check for arguments before even getting an IP address

SVN-Revision: 10110

target/linux/adm5120/router_le/base-files/sbin/wget2nand

@@ -13,10 +13,6 @@
 	exit 1
 }
 
-# first get an address for br-lan using udhcpc
-killall udhcpc
-/sbin/udhcpc -i br-lan
-
 # need to find the wget server from the command line
 url=$1
 [ -z "$url" ] && {
@@ -25,6 +21,11 @@ url=$1
         exit 1
 }
 
+
+# first get an address for br-lan using udhcpc
+killall udhcpc
+/sbin/udhcpc -i br-lan
+
 boot="$(find_mtd_part 'RouterBoard NAND Boot')"
 main="$(find_mtd_part 'rootfs')"
 [ -z "$boot" -o -z "$main" ] && {