[PATCH] cfg80211: Use kmemdup in cfg80211_gen_new_ie()

[YueHaibing]

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 net/wireless/scan.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 287518c6caa4..04d888628f29 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -190,10 +190,9 @@ static size_t cfg80211_gen_new_ie(const u8 *ie, size_t 
ielen,
        /* copy subelement as we need to change its content to
         * mark an ie after it is processed.
         */
-       sub_copy = kmalloc(subie_len, gfp);
+       sub_copy = kmemdup(subelement, subie_len, gfp);
        if (!sub_copy)
                return 0;
-       memcpy(sub_copy, subelement, subie_len);
 
        pos = &new_ie[0];