staging: ath6kl: cleanup in SEND_FRAME ioctl

The original code was written in a funny way where every statement was
part of else if blocks.  I broke them up into separate statements by
adding breaks on failure conditions.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Vipin Mehta <vipin.mehta@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/ath6kl/os/linux/ioctl.c

@@ -3167,24 +3167,26 @@ int ar6000_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 
             if (ar->arWmiReady == false) {
                 ret = -EIO;
-            } else if (copy_from_user(&optTxFrmCmd, userdata,
-                                      sizeof(optTxFrmCmd)))
-            {
+                break;
+            }
+
+            if (copy_from_user(&optTxFrmCmd, userdata, sizeof(optTxFrmCmd))) {
                 ret = -EFAULT;
-            } else if (copy_from_user(data,
-                                      userdata+sizeof(WMI_OPT_TX_FRAME_CMD)-1,
-                                      optTxFrmCmd.optIEDataLen))
-            {
+                break;
+            }
+
+            if (copy_from_user(data, userdata+sizeof(WMI_OPT_TX_FRAME_CMD) - 1,
+                                   optTxFrmCmd.optIEDataLen)) {
                 ret = -EFAULT;
-            } else {
+                break;
+            }
+
             ret = wmi_opt_tx_frame_cmd(ar->arWmi,
                                            optTxFrmCmd.frmType,
                                            optTxFrmCmd.dstAddr,
                                            optTxFrmCmd.bssid,
                                            optTxFrmCmd.optIEDataLen,
                                            data);
-            }
-
             break;
         }
         case AR6000_XIOCTL_WMI_SETRETRYLIMITS: