follow-up to osmo_sockaddr_from/to_octets()

Forgot to apply one code review change before merge.

Related: OS#5599
Change-Id: Id202f3fda51bea9149ab3462a2efe35cf08d8030
diff --git a/src/socket.c b/src/socket.c
index 6e5bb46..80cba17 100644
--- a/src/socket.c
+++ b/src/socket.c
@@ -1744,7 +1744,7 @@
 {
 	const void *addr;
 	size_t len;
-	switch (os->u.sin.sin_family) {
+	switch (os->u.sa.sa_family) {
 	case AF_INET:
 		addr = &os->u.sin.sin_addr;
 		len = sizeof(os->u.sin.sin_addr);
@@ -1776,7 +1776,7 @@
 	*os = (struct osmo_sockaddr){0};
 	switch (src_len) {
 	case sizeof(os->u.sin.sin_addr):
-		os->u.sin.sin_family = AF_INET;
+		os->u.sa.sa_family = AF_INET;
 		addr = &os->u.sin.sin_addr;
 		len = sizeof(os->u.sin.sin_addr);
 		break;