[PATCH v2] staging: lustre: replace simple_strtoul with kstrtoint

[Marcin Ciupak <marcin.s.ciupak@gmail.com>]

Replace simple_strtoul with kstrtoint.
simple_strtoul is marked for obsoletion as reported by checkpatch.pl

Signed-off-by: Marcin Ciupak <marcin.s.ciupak@gmail.com>
---
v2:
	-improving kstrtoint error handling
	-updating commit message

 drivers/staging/lustre/lustre/obdclass/obd_mount.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
index 8e0d4b1d86dc..42858ee5b444 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
@@ -924,12 +924,20 @@ static int lmd_parse(char *options, struct lustre_mount_data *lmd)
 			lmd->lmd_flags |= LMD_FLG_ABORT_RECOV;
 			clear++;
 		} else if (strncmp(s1, "recovery_time_soft=", 19) == 0) {
-			lmd->lmd_recovery_time_soft = max_t(int,
-				simple_strtoul(s1 + 19, NULL, 10), time_min);
+			int res;
+
+			rc = kstrtoint(s1 + 19, 10, &res);
+			if (rc)
+				goto invalid;
+			lmd->lmd_recovery_time_soft = max_t(int, res, time_min);
 			clear++;
 		} else if (strncmp(s1, "recovery_time_hard=", 19) == 0) {
-			lmd->lmd_recovery_time_hard = max_t(int,
-				simple_strtoul(s1 + 19, NULL, 10), time_min);
+			int res;
+
+			rc = kstrtoint(s1 + 19, 10, &res);
+			if (rc)
+				goto invalid;
+			lmd->lmd_recovery_time_hard = max_t(int, res, time_min);
 			clear++;
 		} else if (strncmp(s1, "noir", 4) == 0) {
 			lmd->lmd_flags |= LMD_FLG_NOIR; /* test purpose only. */
-- 
2.11.1