From 2e1cd90d718a5fc721e0caa0dc9f037d9b1f46b8 Mon Sep 17 00:00:00 2001
From: Ming Lin <mlin@kernel.org>
Date: Sun, 29 Mar 2015 23:11:30 -0700
Subject: [PATCH] tcm_loop: fixup tpgt string to integer conversion

Currently, for example, mkdir "tpgt_xyz" doesn't return error.
mkdir /sys/kernel/config/target/loopback/naa.60014055f195952b/tpgt_xyz

Replace obsoleted simple_strtoul with kstrtoul and check the conversion.

Signed-off-by: Ming Lin <mlin@kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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