From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Wed, 24 May 2017 00:07:42 +0000 (-0700)
Subject: firmware: vpd: use kdtrndup when copying section key
X-Git-Tag: v4.13-rc1~181^2~132
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3eec6a1c0cf31b982cad560c16e19fdb1851ae91;p=karo-tx-linux.git

firmware: vpd: use kdtrndup when copying section key

Instead of open-coding kstrndup with kzalloc + memcpy, let's use
the helper.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/firmware/google/vpd.c b/drivers/firmware/google/vpd.c
index 1e7860f02f4f..8bd51eaededd 100644
--- a/drivers/firmware/google/vpd.c
+++ b/drivers/firmware/google/vpd.c
@@ -118,14 +118,13 @@ static int vpd_section_attrib_add(const u8 *key, s32 key_len,
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
-	info->key = kzalloc(key_len + 1, GFP_KERNEL);
+
+	info->key = kstrndup(key, key_len, GFP_KERNEL);
 	if (!info->key) {
 		ret = -ENOMEM;
 		goto free_info;
 	}
 
-	memcpy(info->key, key, key_len);
-
 	sysfs_bin_attr_init(&info->bin_attr);
 	info->bin_attr.attr.name = info->key;
 	info->bin_attr.attr.mode = 0444;