diff --git a/drivers/net/wireless/intersil/p54/fwio.c b/drivers/net/wireless/intersil/p54/fwio.c
index a5afcc865196..88e4a5b4a3dc 100644
--- a/drivers/net/wireless/intersil/p54/fwio.c
+++ b/drivers/net/wireless/intersil/p54/fwio.c
@@ -233,6 +233,7 @@ int p54_download_eeprom(struct p54_common *priv, void *buf,
 
 	mutex_lock(&priv->eeprom_mutex);
 	priv->eeprom = buf;
+	priv->eeprom_slice_size = len;
 	eeprom_hdr = skb_put(skb, eeprom_hdr_size + len);
 
 	if (priv->fw_var < 0x509) {
@@ -255,6 +256,7 @@ int p54_download_eeprom(struct p54_common *priv, void *buf,
 		ret = -EBUSY;
 	}
 	priv->eeprom = NULL;
+	priv->eeprom_slice_size = 0;
 	mutex_unlock(&priv->eeprom_mutex);
 	return ret;
 }
diff --git a/drivers/net/wireless/intersil/p54/p54.h b/drivers/net/wireless/intersil/p54/p54.h
index 0a9c1a19380f..9ca3bb3cf3d9 100644
--- a/drivers/net/wireless/intersil/p54/p54.h
+++ b/drivers/net/wireless/intersil/p54/p54.h
@@ -258,6 +258,7 @@ struct p54_common {
 
 	/* eeprom handling */
 	void *eeprom;
+	size_t eeprom_slice_size;
 	struct completion eeprom_comp;
 	struct mutex eeprom_mutex;
 };
diff --git a/drivers/net/wireless/intersil/p54/txrx.c b/drivers/net/wireless/intersil/p54/txrx.c
index 873fea59894f..6333b1000f92 100644
--- a/drivers/net/wireless/intersil/p54/txrx.c
+++ b/drivers/net/wireless/intersil/p54/txrx.c
@@ -500,14 +500,19 @@ static void p54_rx_eeprom_readback(struct p54_common *priv,
 		return ;
 
 	if (priv->fw_var >= 0x509) {
-		memcpy(priv->eeprom, eeprom->v2.data,
-		       le16_to_cpu(eeprom->v2.len));
+		if (le16_to_cpu(eeprom->v2.len) != priv->eeprom_slice_size)
+			return;
+
+		memcpy(priv->eeprom, eeprom->v2.data, priv->eeprom_slice_size);
 	} else {
-		memcpy(priv->eeprom, eeprom->v1.data,
-		       le16_to_cpu(eeprom->v1.len));
+		if (le16_to_cpu(eeprom->v1.len) != priv->eeprom_slice_size)
+			return;
+
+		memcpy(priv->eeprom, eeprom->v1.data, priv->eeprom_slice_size);
 	}
 
 	priv->eeprom = NULL;
+	priv->eeprom_slice_size = 0;
 	tmp = p54_find_and_unlink_skb(priv, hdr->req_id);
 	dev_kfree_skb_any(tmp);
 	complete(&priv->eeprom_comp);