Fixes some memory leaks in driver_broadom.c

  http://openwrt.org/forum/viewtopic.php?pid=8217#p8217

Thanks Greg (framer99)

--- wpa_supplicant-0.3.8/driver_broadcom.c.orig	2005-01-22 05:35:13.000000000 +0100
+++ wpa_supplicant-0.3.8/driver_broadcom.c	2005-06-10 08:50:14.000000000 +0200
@@ -289,6 +289,7 @@
 			   wwh->type);
 		break;
 	}
+	free(data.assoc_info.resp_ies);
 }	
 
 static void * wpa_driver_broadcom_init(void *ctx, const char *ifname)
@@ -449,8 +450,10 @@
 	wsr->count = 0;
 
 	if (broadcom_ioctl(drv, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) <
-	    0)
+	    0) {
+		free(buf);
 		return -1;
+	}
 
 	memset(results, 0, max_size * sizeof(struct wpa_scan_result));
 
@@ -490,6 +493,7 @@
 	wpa_printf(MSG_MSGDUMP, "Received %d bytes of scan results (%d BSSes)",
 		   wsr->buflen, ap_num);
 
+	free(buf);
 	return ap_num;
 }