Fix string_to_ip

Use a pointer to an ip address instead of the return value in string_to_ip
and use the return value for error indication only. 0.0.0.0 can be a valid
ip address

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/ping.c b/net/ping.c
index 4d61532b1e..14224c6b91 100644
--- a/net/ping.c
+++ b/net/ping.c
@@ -93,8 +93,7 @@ int do_ping (cmd_tbl_t *cmdtp, int argc, char *argv[])
 	if (argc < 2)
 		return -1;
 
-	NetPingIP = string_to_ip(argv[1]);
-	if (NetPingIP == 0) {
+	if (string_to_ip(argv[1], &NetPingIP)) {
 		printf ("Usage:\n%s\n", cmdtp->usage);
 		return -1;
 	}