u32 size = sizeof(struct ieee80211_qos_parameters);
        int set_qos_param = 0;
 
-       if ((priv == NULL) || (network == NULL))
+       if (!priv || !network)
                return 0;
 
        if (priv->ieee80211->state != IEEE80211_LINKED)
        RT_TRACE(COMP_INIT, "Oops: i'm coming\n");
 
        dev = alloc_ieee80211(sizeof(struct r8192_priv));
-       if (dev == NULL)
+       if (!dev)
                return -ENOMEM;
 
        usb_set_intfdata(intf, dev);
                        write_nic_dword(dev, RWCAM, TargetCommand);
                } else {
                        /* Key Material */
-                       if (KeyContent != NULL) {
+                       if (KeyContent) {
                                write_nic_dword(dev, WCAMI, (u32)(*(KeyContent + i - 2)));
                                write_nic_dword(dev, RWCAM, TargetCommand);
                        }