[PATCH] libmem: use SAFE_STRTOL instead

change to use SAFE_STRTOL instead in libmem.

Signed-off-by: Wanlong Gao <gaowanlong@...>
---
 testcases/kernel/mem/lib/mem.c |   12 +++---------
 1 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/testcases/kernel/mem/lib/mem.c b/testcases/kernel/mem/lib/mem.c
index e25b5be..cce7751 100644
--- a/testcases/kernel/mem/lib/mem.c
+++ b/testcases/kernel/mem/lib/mem.c
@@ -13,6 +13,7 @@
 #include "usctest.h"
 #include "../include/mem.h"
 #include "config.h"
+#include "safe_macros.h"
 #if HAVE_NUMA_H && HAVE_LINUX_MEMPOLICY_H && HAVE_NUMAIF_H \
 	&& HAVE_MPOL_CONSTANTS
 #include <numaif.h>
@@ -769,8 +770,7 @@ void set_sys_tune(char *sys_file, long tune, int check)
 long get_sys_tune(char *sys_file)
 {
 	int fd;
-	long tune;
-	char buf[BUFSIZ], path[BUFSIZ], *endptr;
+	char buf[BUFSIZ], path[BUFSIZ];

 	snprintf(path, BUFSIZ, "%s%s", PATH_SYSVM, sys_file);
 	fd = open(path, O_RDONLY);
@@ -780,11 +780,5 @@ long get_sys_tune(char *sys_file)