Pull pnp into release branch

drivers/pnp/card.c

@@ -25,13 +25,13 @@ static const struct pnp_card_device_id *match_card(struct pnp_card_driver *drv,
 				int found;
 				struct pnp_dev *dev;
 
-				if (i == PNP_MAX_DEVICES
-				    || !*drv_id->devs[i].id)
+				if (i == PNP_MAX_DEVICES ||
+				    !*drv_id->devs[i].id)
 					return drv_id;
 				found = 0;
 				card_for_each_dev(card, dev) {
-					if (compare_pnp_id
-					    (dev->id, drv_id->devs[i].id)) {
+					if (compare_pnp_id(dev->id,
+						   drv_id->devs[i].id)) {
 						found = 1;
 						break;
 					}
@@ -183,7 +183,7 @@ static int pnp_interface_attach_card(struct pnp_card *card)
 
 	return 0;
 
-      err_name:
+err_name:
 	device_remove_file(&card->dev, &dev_attr_name);
 	return rc;
 }
@@ -321,10 +321,10 @@ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 		pos = pos->next;
 	}
 
-      done:
+done:
 	return NULL;
 
-      found:
+found:
 	dev->card_link = clink;
 	dev->dev.driver = &drv->link.driver;
 	if (pnp_bus_type.probe(&dev->dev))
@@ -334,7 +334,7 @@ struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
 
 	return dev;
 
-      err_out:
+err_out:
 	dev->dev.driver = NULL;
 	dev->card_link = NULL;
 	return NULL;

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;
@@ -143,7 +138,7 @@ int __pnp_add_device(struct pnp_dev *dev)
  */
 int pnp_add_device(struct pnp_dev *dev)
 {
-	if (!dev || !dev->protocol || dev->card)
+	if (dev->card)
 		return -EINVAL;
 	dev->dev.parent = &dev->protocol->dev;
 	sprintf(dev->dev.bus_id, "%02x:%02x", dev->protocol->number,

drivers/pnp/driver.c

@@ -118,7 +118,7 @@ static int pnp_device_probe(struct device *dev)
 		goto fail;
 	return error;
 
-      fail:
+fail:
 	pnp_device_detach(pnp_dev);
 	return error;
 }
@@ -232,10 +232,6 @@ int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev)
 {
 	struct pnp_id *ptr;
 
-	if (!id)
-		return -EINVAL;
-	if (!dev)
-		return -EINVAL;
 	id->next = NULL;
 	ptr = dev->id;
 	while (ptr && ptr->next)

drivers/pnp/interface.c

@@ -459,7 +459,8 @@ pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr,
 		up(&pnp_res_mutex);
 		goto done;
 	}
-      done:
+
+done:
 	if (retval < 0)
 		return retval;
 	return count;
@@ -499,10 +500,10 @@ int pnp_interface_attach_device(struct pnp_dev *dev)
 
 	return 0;
 
-      err_res:
+err_res:
 	device_remove_file(&dev->dev, &dev_attr_resources);
-      err_opt:
+err_opt:
 	device_remove_file(&dev->dev, &dev_attr_options);
-      err:
+err:
 	return rc;
 }

drivers/pnp/isapnp/core.c

@@ -47,9 +47,6 @@
 #if 0
 #define ISAPNP_REGION_OK
 #endif
-#if 0
-#define ISAPNP_DEBUG
-#endif
 
 int isapnp_disable;		/* Disable ISA PnP */
 static int isapnp_rdp;		/* Read Data Port */
@@ -93,7 +90,6 @@ MODULE_LICENSE("GPL");
 
 static unsigned char isapnp_checksum_value;
 static DEFINE_MUTEX(isapnp_cfg_mutex);
-static int isapnp_detected;
 static int isapnp_csn_count;
 
 /* some prototypes */
@@ -335,7 +331,7 @@ static int __init isapnp_isolate(void)
 		} else if (iteration > 1) {
 			break;
 		}
-	      __next:
+__next:
 		if (csn == 255)
 			break;
 		checksum = 0x6a;
@@ -733,7 +729,7 @@ static int __init isapnp_create_device(struct pnp_card *card,
 			       "isapnp: unexpected or unknown tag type 0x%x for logical device %i (device %i), ignored\n",
 			       type, dev->number, card->number);
 		}
-	      __skip:
+__skip:
 		if (size > 0)
 			isapnp_skip_bytes(size);
 	}
@@ -788,7 +784,7 @@ static void __init isapnp_parse_resource_map(struct pnp_card *card)
 			       "isapnp: unexpected or unknown tag type 0x%x for device %i, ignored\n",
 			       type, card->number);
 		}
-	      __skip:
+__skip:
 		if (size > 0)
 			isapnp_skip_bytes(size);
 	}
@@ -940,9 +936,6 @@ EXPORT_SYMBOL(isapnp_protocol);
 EXPORT_SYMBOL(isapnp_present);
 EXPORT_SYMBOL(isapnp_cfg_begin);
 EXPORT_SYMBOL(isapnp_cfg_end);
-#if 0
-EXPORT_SYMBOL(isapnp_read_byte);
-#endif
 EXPORT_SYMBOL(isapnp_write_byte);
 
 static int isapnp_read_resources(struct pnp_dev *dev,
@@ -993,6 +986,7 @@ static int isapnp_get_resources(struct pnp_dev *dev,
 				struct pnp_resource_table *res)
 {
 	int ret;
+
 	pnp_init_resource_table(res);
 	isapnp_cfg_begin(dev->card->number, dev->number);
 	ret = isapnp_read_resources(dev, res);
@@ -1046,7 +1040,7 @@ static int isapnp_set_resources(struct pnp_dev *dev,
 
 static int isapnp_disable_resources(struct pnp_dev *dev)
 {
-	if (!dev || !dev->active)
+	if (!dev->active)
 		return -EINVAL;
 	isapnp_cfg_begin(dev->card->number, dev->number);
 	isapnp_deactivate(dev->number);
@@ -1069,7 +1063,6 @@ static int __init isapnp_init(void)
 	struct pnp_dev *dev;
 
 	if (isapnp_disable) {
-		isapnp_detected = 0;
 		printk(KERN_INFO "isapnp: ISA Plug & Play support disabled\n");
 		return 0;
 	}
@@ -1117,15 +1110,13 @@ static int __init isapnp_init(void)
 		}
 		isapnp_set_rdp();
 	}
-	isapnp_detected = 1;
 	if (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff) {
 		cards = isapnp_isolate();
 		if (cards < 0 || (isapnp_rdp < 0x203 || isapnp_rdp > 0x3ff)) {
 #ifdef ISAPNP_REGION_OK
 			release_region(_PIDXR, 1);
 #endif
 			release_region(_PNPWRP, 1);
-			isapnp_detected = 0;
 			printk(KERN_INFO
 			       "isapnp: No Plug & Play device found\n");
 			return 0;
@@ -1148,13 +1139,12 @@ static int __init isapnp_init(void)
 			}
 		}
 	}
-	if (cards) {
+	if (cards)
 		printk(KERN_INFO
 		       "isapnp: %i Plug & Play card%s detected total\n", cards,
 		       cards > 1 ? "s" : "");
-	} else {
+	else
 		printk(KERN_INFO "isapnp: No Plug & Play card found\n");
-	}
 
 	isapnp_proc_init();
 	return 0;

drivers/pnp/isapnp/proc.c

@@ -112,33 +112,6 @@ static int isapnp_proc_attach_device(struct pnp_dev *dev)
 	return 0;
 }
 
-#ifdef MODULE
-static int __exit isapnp_proc_detach_device(struct pnp_dev *dev)
-{
-	struct pnp_card *bus = dev->card;
-	struct proc_dir_entry *de;
-	char name[16];
-
-	if (!(de = bus->procdir))
-		return -EINVAL;
-	sprintf(name, "%02x", dev->number);
-	remove_proc_entry(name, de);
-	return 0;
-}
-
-static int __exit isapnp_proc_detach_bus(struct pnp_card *bus)
-{
-	struct proc_dir_entry *de;
-	char name[16];
-
-	if (!(de = bus->procdir))
-		return -EINVAL;
-	sprintf(name, "%02x", bus->number);
-	remove_proc_entry(name, isapnp_proc_bus_dir);
-	return 0;
-}
-#endif				/* MODULE */
-
 int __init isapnp_proc_init(void)
 {
 	struct pnp_dev *dev;
@@ -149,21 +122,3 @@ int __init isapnp_proc_init(void)
 	}
 	return 0;
 }
-
-#ifdef MODULE
-int __exit isapnp_proc_done(void)
-{
-	struct pnp_dev *dev;
-	struct pnp_bus *card;
-
-	isapnp_for_each_dev(dev) {
-		isapnp_proc_detach_device(dev);
-	}
-	isapnp_for_each_card(card) {
-		isapnp_proc_detach_bus(card);
-	}
-	if (isapnp_proc_bus_dir)
-		remove_proc_entry("isapnp", proc_bus);
-	return 0;
-}
-#endif				/* MODULE */

drivers/pnp/manager.c

@@ -21,9 +21,6 @@ static int pnp_assign_port(struct pnp_dev *dev, struct pnp_port *rule, int idx)
 	resource_size_t *start, *end;
 	unsigned long *flags;
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_PORT) {
 		pnp_err
 		    ("More than 4 ports is incompatible with pnp specifications.");
@@ -66,9 +63,6 @@ static int pnp_assign_mem(struct pnp_dev *dev, struct pnp_mem *rule, int idx)
 	resource_size_t *start, *end;
 	unsigned long *flags;
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_MEM) {
 		pnp_err
 		    ("More than 8 mems is incompatible with pnp specifications.");
@@ -127,9 +121,6 @@ static int pnp_assign_irq(struct pnp_dev *dev, struct pnp_irq *rule, int idx)
 		5, 10, 11, 12, 9, 14, 15, 7, 3, 4, 13, 0, 1, 6, 8, 2
 	};
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_IRQ) {
 		pnp_err
 		    ("More than 2 irqs is incompatible with pnp specifications.");
@@ -181,9 +172,6 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx)
 		1, 3, 5, 6, 7, 0, 2, 4
 	};
 
-	if (!dev || !rule)
-		return -EINVAL;
-
 	if (idx >= PNP_MAX_DMA) {
 		pnp_err
 		    ("More than 2 dmas is incompatible with pnp specifications.");
@@ -390,7 +378,7 @@ static int pnp_assign_resources(struct pnp_dev *dev, int depnum)
 	up(&pnp_res_mutex);
 	return 1;
 
-      fail:
+fail:
 	pnp_clean_resource_table(&dev->res);
 	up(&pnp_res_mutex);
 	return 0;
@@ -410,8 +398,6 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
 	int i;
 	struct pnp_resource_table *bak;
 
-	if (!dev || !res)
-		return -EINVAL;
 	if (!pnp_can_configure(dev))
 		return -ENODEV;
 	bak = pnp_alloc(sizeof(struct pnp_resource_table));
@@ -444,7 +430,7 @@ int pnp_manual_config_dev(struct pnp_dev *dev, struct pnp_resource_table *res,
 	kfree(bak);
 	return 0;
 
-      fail:
+fail:
 	dev->res = *bak;
 	up(&pnp_res_mutex);
 	kfree(bak);
@@ -460,9 +446,6 @@ int pnp_auto_config_dev(struct pnp_dev *dev)
 	struct pnp_option *dep;
 	int i = 1;
 
-	if (!dev)
-		return -EINVAL;
-
 	if (!pnp_can_configure(dev)) {
 		pnp_dbg("Device %s does not support resource configuration.",
 			dev->dev.bus_id);
@@ -541,8 +524,6 @@ int pnp_activate_dev(struct pnp_dev *dev)
 {
 	int error;
 
-	if (!dev)
-		return -EINVAL;
 	if (dev->active)
 		return 0;	/* the device is already active */
 
@@ -568,8 +549,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
 {
 	int error;
 
-	if (!dev)
-		return -EINVAL;
 	if (!dev->active)
 		return 0;	/* the device is already disabled */
 
@@ -596,8 +575,6 @@ int pnp_disable_dev(struct pnp_dev *dev)
 void pnp_resource_change(struct resource *resource, resource_size_t start,
 			 resource_size_t size)
 {
-	if (resource == NULL)
-		return;
 	resource->flags &= ~(IORESOURCE_AUTO | IORESOURCE_UNSET);
 	resource->start = start;
 	resource->end = start + size - 1;