From bb0bd931dc6ac74463ac169a03fe14ef425b1d3d Mon Sep 17 00:00:00 2001
From: Marcelo Araujo <araujo@FreeBSD.org>
Date: Mon, 18 Apr 2016 05:19:45 +0000
Subject: [PATCH] The malloc will return NULL if it can't allocate memory.

MFC after:	2 weeks.
---
 usr.sbin/makefs/ffs/mkfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.sbin/makefs/ffs/mkfs.c b/usr.sbin/makefs/ffs/mkfs.c
index b1bdd098f36b..dfdaf57b8f0f 100644
--- a/usr.sbin/makefs/ffs/mkfs.c
+++ b/usr.sbin/makefs/ffs/mkfs.c
@@ -492,7 +492,7 @@ ffs_mkfs(const char *fsys, const fsinfo_t *fsopts)
 		iobufsize = SBLOCKSIZE + 3 * sblock.fs_bsize;
 	else
 		iobufsize = 4 * sblock.fs_bsize;
-	if ((iobuf = malloc(iobufsize)) == 0) {
+	if ((iobuf = malloc(iobufsize)) == NULL) {
 		printf("Cannot allocate I/O buffer\n");
 		exit(38);
 	}