X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;ds=sidebyside;f=grep.c;h=bb548cae69d1eece8832c97332a91daac5f8dceb;hb=fd4fab894f564d04e0e3fb60659e6babfc4e3d81;hp=4bd1b8b1dd67e4f5c2223536b435198ce67463ba;hpb=0ee7198f457c8ea031b09b528cfd88f0f0e630d8;p=~andy%2Fgit

diff --git a/grep.c b/grep.c
index 4bd1b8b1d..bb548cae6 100644
--- a/grep.c
+++ b/grep.c
@@ -625,7 +625,8 @@ static struct grep_expr *prep_header_patterns(struct grep_opt *opt)
 	for (p = opt->header_list; p; p = p->next) {
 		if (p->token != GREP_PATTERN_HEAD)
 			die("bug: a non-header pattern in grep header list.");
-		if (p->field < 0 || GREP_HEADER_FIELD_MAX <= p->field)
+		if (p->field < GREP_HEADER_FIELD_MIN ||
+		    GREP_HEADER_FIELD_MAX <= p->field)
 			die("bug: unknown header field %d", p->field);
 		compile_regexp(p, opt);
 	}