staging: wilc1000: use kmemdup instead of kmalloc and memcpy

This patch changes kmalloc/memcpy to kmemdup.
It is also added error checking to return -ENOMEM if kmemdup is failed.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index 79f3d9f..6518942 100644 (file)
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -3398,20 +3398,23 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid,
        msg.vif = vif;
 
        if (bssid) {
-               msg.body.con_info.bssid = kmalloc(6, GFP_KERNEL);
-               memcpy(msg.body.con_info.bssid, bssid, 6);
+               msg.body.con_info.bssid = kmemdup(bssid, 6, GFP_KERNEL);
+               if (!msg.body.con_info.bssid)
+                       return -ENOMEM;
        }
 
        if (ssid) {
                msg.body.con_info.ssid_len = ssid_len;
-               msg.body.con_info.ssid = kmalloc(ssid_len, GFP_KERNEL);
-               memcpy(msg.body.con_info.ssid, ssid, ssid_len);
+               msg.body.con_info.ssid = kmemdup(ssid, ssid_len, GFP_KERNEL);
+               if (!msg.body.con_info.ssid)
+                       return -ENOMEM;
        }
 
        if (ies) {
                msg.body.con_info.ies_len = ies_len;
-               msg.body.con_info.ies = kmalloc(ies_len, GFP_KERNEL);
-               memcpy(msg.body.con_info.ies, ies, ies_len);
+               msg.body.con_info.ies = kmemdup(ies, ies_len, GFP_KERNEL);
+               if (!msg.body.con_info.ies)
+                       return -ENOMEM;
        }
        if (hif_drv->hif_state < HOST_IF_CONNECTING)
                hif_drv->hif_state = HOST_IF_CONNECTING;