sh: Avoid close(-1) when evaluating a multi-command pipeline.

Valgrind complains about this.
2011-05-15 17:00:43 +00:00 · 2011-05-15 17:00:43 +00:00 · ee209e5ce8
commit ee209e5ce8
parent 43b24a4ea4
1 changed files with 2 additions and 1 deletions
--- a/bin/sh/eval.c
+++ b/bin/sh/eval.c
@ -552,7 +552,8 @@ evalpipe(union node *n)
 		if (prevfd >= 0)
 			close(prevfd);
 		prevfd = pip[0];
-		close(pip[1]);
+		if (pip[1] != -1)
+			close(pip[1]);
 	}
 	INTON;
 	if (n->npipe.backgnd == 0) {