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[PATCH] PNP: handle sysfs errors 

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Garzik 2006-12-06 20:35:33 -08:00 committed by Linus Torvalds
parent 3889b26beb
commit bfc7ee2070
2 changed files with 35 additions and 12 deletions
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30
drivers/pnp/card.c
View File

@ -164,9 +164,17 @@ static DEVICE_ATTR(card_id,S_IRUGO,pnp_show_card_ids,NULL);
static int pnp_interface_attach_card(struct pnp_card *card)
{
device_create_file(&card->dev,&dev_attr_name);
device_create_file(&card->dev,&dev_attr_card_id);
int rc = device_create_file(&card->dev,&dev_attr_name);
if (rc) return rc;
rc = device_create_file(&card->dev,&dev_attr_card_id);
if (rc) goto err_name;
return 0;
err_name:
device_remove_file(&card->dev,&dev_attr_name);
return rc;
}
/**
@ -306,16 +314,20 @@ struct pnp_dev * pnp_request_card_device(struct pnp_card_link *clink, const char
down_write(&dev->dev.bus->subsys.rwsem);
dev->card_link = clink;
dev->dev.driver = &drv->link.driver;
if (pnp_bus_type.probe(&dev->dev)) {
dev->dev.driver = NULL;
dev->card_link = NULL;
up_write(&dev->dev.bus->subsys.rwsem);
return NULL;
}
device_bind_driver(&dev->dev);
if (pnp_bus_type.probe(&dev->dev))
goto err_out;
if (device_bind_driver(&dev->dev))
goto err_out;
up_write(&dev->dev.bus->subsys.rwsem);
return dev;
err_out:
dev->dev.driver = NULL;
dev->card_link = NULL;
up_write(&dev->dev.bus->subsys.rwsem);
return NULL;
}
/**

17
drivers/pnp/interface.c
View File

@ -461,8 +461,19 @@ static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL);
int pnp_interface_attach_device(struct pnp_dev *dev)
{
device_create_file(&dev->dev,&dev_attr_options);
device_create_file(&dev->dev,&dev_attr_resources);
device_create_file(&dev->dev,&dev_attr_id);
int rc = device_create_file(&dev->dev,&dev_attr_options);
if (rc) goto err;
rc = device_create_file(&dev->dev,&dev_attr_resources);
if (rc) goto err_opt;
rc = device_create_file(&dev->dev,&dev_attr_id);
if (rc) goto err_res;
return 0;
err_res:
device_remove_file(&dev->dev,&dev_attr_resources);
err_opt:
device_remove_file(&dev->dev,&dev_attr_options);
err:
return rc;
}