diff -ur linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_cs.c linux-2.6.21.5/drivers/net/wireless/hostap/hostap_cs.c
--- linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_cs.c	2007-06-11 20:37:06.000000000 +0200
+++ linux-2.6.21.5/drivers/net/wireless/hostap/hostap_cs.c	2007-07-21 17:14:35.000000000 +0200
@@ -37,7 +37,7 @@
 module_param(ignore_cis_vcc, int, 0444);
 MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry");
 
-
+int activar=0;
 /* struct local_info::hw_priv */
 struct hostap_cs_priv {
 	dev_node_t node;
@@ -501,11 +501,13 @@
 
 	PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
 	p_dev->conf.IntType = INT_MEMORY_AND_IO;
-
+	
+	activar=0;
 	ret = prism2_config(p_dev);
 	if (ret) {
 		PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
 	}
+	activar=1;
 
 	return ret;
 }
diff -ur linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_hw.c linux-2.6.21.5/drivers/net/wireless/hostap/hostap_hw.c
--- linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_hw.c	2007-06-11 20:37:06.000000000 +0200
+++ linux-2.6.21.5/drivers/net/wireless/hostap/hostap_hw.c	2007-07-21 17:04:51.000000000 +0200
@@ -54,6 +54,7 @@
 #include "hostap.h"
 #include "hostap_ap.h"
 
+extern int activar;
 
 /* #define final_version */
 
@@ -1497,6 +1498,8 @@
 	if (local->hw_downloading)
 		return 1;
 
+	activar=1;
+
 	if (prism2_hw_init(dev, initial)) {
 		return local->no_pri ? 0 : 1;
 	}
@@ -2626,8 +2629,15 @@
 	int events = 0;
 	u16 ev;
 
-	iface = netdev_priv(dev);
-	local = iface->local;
+
+	// Todos los parametros de entrada son correctos (no son nulos). De momento esta es la unica forma que conozco de detectar el problema.
+	if (!activar) {
+		printk("hostap_hw.c: INTERRUPT BEFORE DEVICE INIT!\n");
+		return IRQ_HANDLED;
+	}
+
+ 	iface = netdev_priv(dev);
+ 	local = iface->local;
 
 	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0);
 
diff -ur linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_pci.c linux-2.6.21.5/drivers/net/wireless/hostap/hostap_pci.c
--- linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_pci.c	2007-06-11 20:37:06.000000000 +0200
+++ linux-2.6.21.5/drivers/net/wireless/hostap/hostap_pci.c	2007-07-21 13:15:54.000000000 +0200
@@ -19,6 +19,7 @@
 
 #include "hostap_wlan.h"
 
+int activar=1;
 
 static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
 static char *dev_info = "hostap_pci";
diff -ur linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_plx.c linux-2.6.21.5/drivers/net/wireless/hostap/hostap_plx.c
--- linux-2.6.21.5-tmporig/drivers/net/wireless/hostap/hostap_plx.c	2007-06-11 20:37:06.000000000 +0200
+++ linux-2.6.21.5/drivers/net/wireless/hostap/hostap_plx.c	2007-07-21 13:16:06.000000000 +0200
@@ -21,7 +21,7 @@
 #include <asm/io.h>
 
 #include "hostap_wlan.h"
-
+int activar=1;
 
 static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
 static char *dev_info = "hostap_plx";