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

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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>
This commit is contained in:
Bjorn Helgaas
2008-04-28 16:33:52 -06:00
committed by Len Brown
parent 1692b27bf3
commit 772defc629
6 changed files with 36 additions and 48 deletions
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28
drivers/pnp/driver.c
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@ -226,22 +226,36 @@ void pnp_unregister_driver(struct pnp_driver *drv)
/**
* pnp_add_id - adds an EISA id to the specified device
* @id: pointer to a pnp_id structure
* @dev: pointer to the desired device
* @id: pointer to an EISA id string
*/
int pnp_add_id(struct pnp_id *id, struct pnp_dev *dev)
struct pnp_id *pnp_add_id(struct pnp_dev *dev, 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 = dev->id;
while (ptr && ptr->next)
ptr = ptr->next;
if (ptr)
ptr->next = id;
ptr->next = dev_id;
else
dev->id = id;
return 0;
dev->id = dev_id;
return dev_id;
}
EXPORT_SYMBOL(pnp_register_driver);