PNP: change pnp_add_card_id() to allocate its own pnp_id structures

This moves some of the pnp_id knowledge out of the backends and into
the PNP core.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/pnp/base.h

@@ -4,7 +4,7 @@ void *pnp_alloc(long size);
 void pnp_eisa_id_to_string(u32 id, char *str);
 struct pnp_dev *pnp_alloc_dev(struct pnp_protocol *, int id, char *pnpid);
 struct pnp_id *pnp_add_id(struct pnp_dev *dev, char *id);
-int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card);
+struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id);
 int pnp_interface_attach_device(struct pnp_dev *dev);
 void pnp_fixup_device(struct pnp_dev *dev);
 void pnp_free_option(struct pnp_option *option);

drivers/pnp/card.c

@@ -5,6 +5,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/ctype.h>
 #include <linux/slab.h>
 #include <linux/pnp.h>
 #include "base.h"
@@ -100,19 +101,33 @@ static int card_probe(struct pnp_card *card, struct pnp_card_driver *drv)
  * @id: pointer to a pnp_id structure
  * @card: pointer to the desired card
  */
-int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card)
+struct pnp_id *pnp_add_card_id(struct pnp_card *card, char *id)
 {
-	struct pnp_id *ptr;
+	struct pnp_id *dev_id, *ptr;
 
-	id->next = NULL;
+	dev_id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
+	if (!dev_id)
+		return NULL;
+
+	dev_id->id[0] = id[0];
+	dev_id->id[1] = id[1];
+	dev_id->id[2] = id[2];
+	dev_id->id[3] = tolower(id[3]);
+	dev_id->id[4] = tolower(id[4]);
+	dev_id->id[5] = tolower(id[5]);
+	dev_id->id[6] = tolower(id[6]);
+	dev_id->id[7] = '\0';
+
+	dev_id->next = NULL;
 	ptr = card->id;
 	while (ptr && ptr->next)
 		ptr = ptr->next;
 	if (ptr)
-		ptr->next = id;
+		ptr->next = dev_id;
 	else
-		card->id = id;
-	return 0;
+		card->id = dev_id;
+
+	return dev_id;
 }
 
 static void pnp_free_card_ids(struct pnp_card *card)

drivers/pnp/isapnp/core.c

@@ -822,17 +822,18 @@ static unsigned char __init isapnp_checksum(unsigned char *data)
 static void isapnp_parse_card_id(struct pnp_card *card, unsigned short vendor,
 				 unsigned short device)
 {
-	struct pnp_id *id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
+	char id[8];
 
-	if (!id)
-		return;
-	sprintf(id->id, "%c%c%c%x%x%x%x",
-		'A' + ((vendor >> 2) & 0x3f) - 1,
-		'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1,
-		'A' + ((vendor >> 8) & 0x1f) - 1,
-		(device >> 4) & 0x0f,
-		device & 0x0f, (device >> 12) & 0x0f, (device >> 8) & 0x0f);
-	pnp_add_card_id(id, card);
+	id[0] = 'A' + ((vendor >> 2) & 0x3f) - 1;
+	id[1] = 'A' + (((vendor & 3) << 3) | ((vendor >> 13) & 7)) - 1;
+	id[2] = 'A' + ((vendor >> 8) & 0x1f) - 1;
+	id[3] = hex_asc((device >> 4) & 0x0f);
+	id[4] = hex_asc(device & 0x0f);
+	id[5] = hex_asc((device >> 12) & 0x0f);
+	id[6] = hex_asc((device >> 8) & 0x0f);
+	id[7] = '\0';
+
+	pnp_add_card_id(card, id);
 }
 
 /*