perf/x86: Convert obsolete simple_strtoul() usage to kstrtoul()

Signed-off-by: Shuah Khan <shuahkhan@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1339384421.3025.8.camel@lorien2
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 000a4746c7ced5146c64681be7abacef441bc661..766c76d5ec4c242d310a98a9dfc0caf4af7cefab 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1640,7 +1640,12 @@ static ssize_t set_attr_rdpmc(struct device *cdev,
                              struct device_attribute *attr,
                              const char *buf, size_t count)
 {
-       unsigned long val = simple_strtoul(buf, NULL, 0);
+       unsigned long val;
+       ssize_t ret;
+
+       ret = kstrtoul(buf, 0, &val);
+       if (ret)
+               return ret;
 
        if (!!val != !!x86_pmu.attr_rdpmc) {
                x86_pmu.attr_rdpmc = !!val;