From 8924f4e4ad35ef62cab104e42757c62798060a84 Mon Sep 17 00:00:00 2001
From: Mark Borgerding <mark@borgerding.net>
Date: Wed, 18 Jul 2012 00:10:47 -0400
Subject: [PATCH] check return value from system call

---
 test/pstats.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/pstats.c b/test/pstats.c
index bb2244e..596826c 100644
--- a/test/pstats.c
+++ b/test/pstats.c
@@ -36,7 +36,9 @@ static void ps_report(void)
 #else /* GNU/Linux */
     sprintf(buf,"ps -o comm,majflt,minflt,rss,drs,pagein,sz,trs,vsz %d 1>&2",getpid() );
 #endif    
-    system( buf );
+    if (system( buf )==-1) {
+        perror("system call to ps failed");
+    }
 }
 
 void pstats_report()