staging: wilc1000: Use kmalloc_array instead of kmalloc

Use kmalloc_array instead of kmalloc for arrays to prevent integer
overflows.
Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/wilc_wfi_cfgoperations.c

@@ -664,7 +664,7 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 		PRINT_D(CFG80211_DBG, "Number of SSIDs %d\n", request->n_ssids);
 
 		if (request->n_ssids >= 1) {
-			strHiddenNetwork.net_info = kmalloc(request->n_ssids * sizeof(struct hidden_network), GFP_KERNEL);
+			strHiddenNetwork.net_info = kmalloc_array(request->n_ssids, sizeof(struct hidden_network), GFP_KERNEL);
 			strHiddenNetwork.n_ssids = request->n_ssids;