misc: replace strict_strtoul() with kstrtoul()
The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 797d796..4f76359 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -160,15 +160,11 @@
static ssize_t options_write(struct file *file, const char __user *userbuf,
size_t count, loff_t *data)
{
- char buf[20];
+ int ret;
- if (count >= sizeof(buf))
- return -EINVAL;
- if (copy_from_user(buf, userbuf, count))
- return -EFAULT;
- buf[count] = '\0';
- if (strict_strtoul(buf, 0, &gru_options))
- return -EINVAL;
+ ret = kstrtoul_from_user(userbuf, count, 0, &gru_options);
+ if (ret)
+ return ret;
return count;
}