git.el: Add support for commit hooks.

diff --git a/server-info.c b/server-info.c
index 6cd38be3291e95e75a7d2348e825d49c8f7ad2af..f9be5a7f60c1cc5208e7c91367ecb28014106f18 100644 (file)
--- a/server-info.c
+++ b/server-info.c
@@ -10,6 +10,8 @@ static FILE *info_ref_fp;
 static int add_info_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
 {
        struct object *o = parse_object(sha1);
+       if (!o)
+               return -1;
 
        fprintf(info_ref_fp, "%s        %s\n", sha1_to_hex(sha1), path);
        if (o->type == OBJ_TAG) {