1 files changed, 4 insertions, 5 deletions

diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index c9bda6d6035c..fbdfc6917180 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -299,12 +299,11 @@ static ssize_t reload_store(struct device *dev,
 {
         unsigned long val;
         int cpu = dev->id;
-        int ret = 0;
-        char *end;
+        ssize_t ret = 0;
 
-        val = simple_strtoul(buf, &end, 0);
-        if (end == buf)
-                return -EINVAL;
+        ret = kstrtoul(buf, 0, &val);
+        if (ret)
+                return ret;
 
         if (val == 1) {
                 get_online_cpus();