cfg80211: Use kmemdup in cfg80211_gen_new_ie()

Use kmemdup rather than duplicating its implementation

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 287518c..04d8886 100644 (file)
--- 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];