From 38c5b0dd7d3092c24fc3dbd9ca963fd0e11752f5 Mon Sep 17 00:00:00 2001
From: Armin Wolf <W_Armin@gmx.de>
Date: Thu, 21 Oct 2021 21:05:28 +0200
Subject: hwmon: (dell-smm) Use strscpy_pad()
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Using strscpy_pad() allows for fewer memory accesses
since memset() will not unconditionally zero-out
the whole buffer.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20211021190531.17379-3-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/dell-smm-hwmon.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/hwmon')

diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 9773d6c0477a..b0c591bb761a 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -25,6 +25,7 @@
 #include <linux/platform_device.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/string.h>
 #include <linux/smp.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
@@ -472,8 +473,7 @@ i8k_ioctl_unlocked(struct file *fp, struct dell_smm_data *data, unsigned int cmd
 		if (restricted && !capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
-		memset(buff, 0, sizeof(buff));
-		strscpy(buff, data->bios_machineid, sizeof(buff));
+		strscpy_pad(buff, data->bios_machineid, sizeof(buff));
 		break;
 
 	case I8K_FN_STATUS:
-- 
cgit