[PATCH V2] kernel/res_counter.c: replace simple_strtoull by kstrtoull

[Fabian Frederick]

Thanks to Andrew Morton for commenting first version.

Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxx>
Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
V2: Suggestions by Andrew Morton
-use internal rc variable
-simplify if condition
 kernel/res_counter.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 51dbac6..f65a95c 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -186,8 +186,8 @@ 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 ((res != 1) || rc)
 			return -EINVAL;
 		*resp = RES_COUNTER_MAX;
 		return 0;
-- 
1.9.1
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