alloc_ref_from_str(): factor out a common pattern of alloc_ref from string

Also fix an underallocation in walker.c::interpret_target().

Signed-off-by: Krzysztof Kowalczyk <kkowalczyk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/walker.c b/walker.c
index fa96a7c7d2..31de6c16bd 100644
--- a/walker.c
+++ b/walker.c
@@ -190,8 +190,7 @@ static int interpret_target(struct walker *walker, char *target, unsigned char *
 	if (!get_sha1_hex(target, sha1))
 		return 0;
 	if (!check_ref_format(target)) {
-		struct ref *ref = alloc_ref(strlen(target));
-		strcpy(ref->name, target);
+		struct ref *ref = alloc_ref_from_str(target);
 		if (!walker->fetch_ref(walker, ref)) {
 			hashcpy(sha1, ref->old_sha1);
 			free(ref);