X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fpnp%2Fcore.c;h=20771b7d4482562d18536aca252f9e870b08f907;hb=09ca8adbe9f724a7e96f512c0039c4c4a1c5dcc0;hp=61066fdb9e6ddac8237281cfaecb81d55dc246d3;hpb=7b5573769f26a23518b33a64ec129d2833564877;p=linux-2.6

diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
index 61066fdb9e..20771b7d44 100644
--- a/drivers/pnp/core.c
+++ b/drivers/pnp/core.c
@@ -52,9 +52,6 @@ int pnp_register_protocol(struct pnp_protocol *protocol)
 	int nodenum;
 	struct list_head *pos;
 
-	if (!protocol)
-		return -EINVAL;
-
 	INIT_LIST_HEAD(&protocol->devices);
 	INIT_LIST_HEAD(&protocol->cards);
 	nodenum = 0;
@@ -94,8 +91,6 @@ static void pnp_free_ids(struct pnp_dev *dev)
 	struct pnp_id *id;
 	struct pnp_id *next;
 
-	if (!dev)
-		return;
 	id = dev->id;
 	while (id) {
 		next = id->next;
@@ -111,18 +106,53 @@ static void pnp_release_device(struct device *dmdev)
 	pnp_free_option(dev->independent);
 	pnp_free_option(dev->dependent);
 	pnp_free_ids(dev);
+	kfree(dev->res);
 	kfree(dev);
 }
 
-int __pnp_add_device(struct pnp_dev *dev)
+struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *protocol, int id, char *pnpid)
 {
-	int ret;
+	struct pnp_dev *dev;
+	struct pnp_id *dev_id;
 
-	pnp_fixup_device(dev);
+	dev = kzalloc(sizeof(struct pnp_dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+
+	dev->res = kzalloc(sizeof(struct pnp_resource_table), GFP_KERNEL);
+	if (!dev->res) {
+		kfree(dev);
+		return NULL;
+	}
+
+	dev->protocol = protocol;
+	dev->number = id;
+	dev->dma_mask = DMA_24BIT_MASK;
+
+	dev->dev.parent = &dev->protocol->dev;
 	dev->dev.bus = &pnp_bus_type;
 	dev->dev.dma_mask = &dev->dma_mask;
-	dev->dma_mask = dev->dev.coherent_dma_mask = DMA_24BIT_MASK;
+	dev->dev.coherent_dma_mask = dev->dma_mask;
 	dev->dev.release = &pnp_release_device;
+
+	sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number,
+		dev->number);
+
+	dev_id = pnp_add_id(dev, pnpid);
+	if (!dev_id) {
+		kfree(dev->res);
+		kfree(dev);
+		return NULL;
+	}
+
+	return dev;
+}
+
+int __pnp_add_device(struct pnp_dev *dev)
+{
+	int ret;
+
+	pnp_fixup_device(dev);
 	dev->status = PNP_READY;
 	spin_lock(&pnp_lock);
 	list_add_tail(&dev->global_list, &pnp_global);
@@ -130,9 +160,11 @@ int __pnp_add_device(struct pnp_dev *dev)
 	spin_unlock(&pnp_lock);
 
 	ret = device_register(&dev->dev);
-	if (ret == 0)
-		pnp_interface_attach_device(dev);
-	return ret;
+	if (ret)
+		return ret;
+
+	pnp_interface_attach_device(dev);
+	return 0;
 }
 
 /*
@@ -143,12 +175,27 @@ int __pnp_add_device(struct pnp_dev *dev)
  */
 int pnp_add_device(struct pnp_dev *dev)
 {
-	if (!dev || !dev->protocol || dev->card)
+	int ret;
+
+	if (dev->card)
 		return -EINVAL;
-	dev->dev.parent = &dev->protocol->dev;
-	sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number,
-		dev->number);
-	return __pnp_add_device(dev);
+
+	ret = __pnp_add_device(dev);
+	if (ret)
+		return ret;
+
+#ifdef CONFIG_PNP_DEBUG
+	{
+		struct pnp_id *id;
+
+		dev_printk(KERN_DEBUG, &dev->dev, "%s device, IDs",
+			dev->protocol->name);
+		for (id = dev->id; id; id = id->next)
+			printk(" %s", id->id);
+		printk(" (%s)\n", dev->active ? "active" : "disabled");
+	}
+#endif
+	return 0;
 }
 
 void __pnp_remove_device(struct pnp_dev *dev)