From 23320b7a7222dd7f78894a619ce323cc821ebcde Mon Sep 17 00:00:00 2001
From: tg <tg@mirbsd.org>
Date: Mon, 7 Aug 2017 23:25:09 +0000
Subject: [PATCH] Coverity 1416282

---
 histrap.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/histrap.c b/histrap.c
index 78bf56e..6b9396e 100644
--- a/histrap.c
+++ b/histrap.c
@@ -27,7 +27,7 @@
 #include <sys/file.h>
 #endif
 
-__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.165 2017/08/07 23:15:47 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.166 2017/08/07 23:25:09 tg Exp $");
 
 Trap sigtraps[ksh_NSIG + 1];
 static struct sigaction Sigact_ign;
@@ -724,12 +724,13 @@ hist_persist_back(int srcfd)
 	int rv = 0;
 #define MKSH_HS_BUFSIZ 4096
 
-	if ((buf = malloc_osfunc(MKSH_HS_BUFSIZ)) == NULL)
+	if ((tot = lseek(srcfd, (off_t)0, SEEK_END)) < 0 ||
+	    lseek(srcfd, (off_t)0, SEEK_SET) < 0 ||
+	    lseek(histfd, (off_t)0, SEEK_SET) < 0)
 		return (1);
 
-	tot = lseek(srcfd, (off_t)0, SEEK_END);
-	lseek(srcfd, (off_t)0, SEEK_SET);
-	lseek(histfd, (off_t)0, SEEK_SET);
+	if ((buf = malloc_osfunc(MKSH_HS_BUFSIZ)) == NULL)
+		return (1);
 
 	mis = tot;
 	while (mis > 0) {