[PATCH] coccinelle: api: fix device_attr_show.cocci warnings

[kernel test robot <lkp@intel.com>]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Denis Efremov <efremov@linux.com>
CC: Julia Lawall <Julia.Lawall@lip6.fr>
CC: Jean Delvare <jdelvare@suse.com>
CC: Guenter Roeck <linux@roeck-us.net>
CC: linux-hwmon(a)vger.kernel.org
CC: linux-kernel(a)vger.kernel.org

From: kernel test robot <lkp@intel.com>

drivers/hwmon/occ/sysfs.c:80:8-16: WARNING: use scnprintf or sprintf
drivers/hwmon/occ/sysfs.c:70:8-16: WARNING: use scnprintf or sprintf


 From Documentation/filesystems/sysfs.txt:
  show() must not use snprintf() when formatting the value to be
  returned to user space. If you can guarantee that an overflow
  will never happen you can use sprintf() otherwise you must use
  scnprintf().

Generated by: scripts/coccinelle/api/device_attr_show.cocci

Fixes: abfc19ff202d ("coccinelle: api: add device_attr_show script")
CC: Denis Efremov <efremov@linux.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a349e4c659609fd20e4beea89e5c4a4038e33a95
commit: abfc19ff202d287742483e15fd478ddd6ada2187 coccinelle: api: add device_attr_show script
:::::: branch date: 16 hours ago
:::::: commit date: 4 months ago

Please take the patch only if it's a positive warning. Thanks!

 sysfs.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/hwmon/occ/sysfs.c
+++ b/drivers/hwmon/occ/sysfs.c
@@ -67,7 +67,7 @@ static ssize_t occ_sysfs_show(struct dev
 		return -EINVAL;
 	}
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", val);
+	return scnprintf(buf, PAGE_SIZE - 1, "%d\n", val);
 }
 
 static ssize_t occ_error_show(struct device *dev,
@@ -77,7 +77,7 @@ static ssize_t occ_error_show(struct dev
 
 	occ_update_response(occ);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", occ->error);
+	return scnprintf(buf, PAGE_SIZE - 1, "%d\n", occ->error);
 }
 
 static SENSOR_DEVICE_ATTR(occ_master, 0444, occ_sysfs_show, NULL, 0);