kernel/res_counter.c: replace simple_strtoull by kstrtoull

[[email protected]: don't overwrite kstrtoull()'s errno]
Signed-off-by: Fabian Frederick <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Tejun Heo <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 51dbac6a363358b435a14f9e7952b9489eb3bf9d..e791130f85a7ace7bbfc4d412151b912d6b87d49 100644 (file)
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -186,8 +186,11 @@ int res_counter_memparse_write_strategy(const char *buf,
 
        /* return RES_COUNTER_MAX(unlimited) if "-1" is specified */
        if (*buf == '-') {
-               res = simple_strtoull(buf + 1, &end, 10);
-               if (res != 1 || *end != '\0')
+               int rc = kstrtoull(buf + 1, 10, &res);
+
+               if (rc)
+                       return rc;
+               if (res != 1)
                        return -EINVAL;
                *resp = RES_COUNTER_MAX;
                return 0;