mac80211: fix error in sizeof() usage

Using 'sizeof' on array given as function argument returns
size of a pointer rather than the size of array.

Cc: stable@vger.kernel.org
Signed-off-by: Cong Ding <dinggnu@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 516fbc96feff..0479c64aa83c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2004,7 +2004,8 @@ static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-        memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate));
+        memcpy(sdata->vif.bss_conf.mcast_rate, rate,
+               sizeof(int) * IEEE80211_NUM_BANDS);
 
         return 0;
 }