prefix_filename(): safely handle the case where pfx_len=0

diff --git a/upload-pack.c b/upload-pack.c
index fc79ddef255a49176acab52c6492c1086b4e6e44..92f9530c6572a212c12ac917d774736286325e52 100644 (file)
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -482,7 +482,7 @@ static int get_common_commits(void)
 
 static void receive_needs(void)
 {
-       struct object_array shallows = {0, 0, NULL};
+       struct object_array shallows = OBJECT_ARRAY_INIT;
        static char line[1000];
        int len, depth = 0;