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simplify pnp_activate_dev() and pnp_disable_dev() return values 

Make pnp_activate_dev() and pnp_disable_dev() return only 0 (success) or a
negative error value, as pci_enable_device() and pci_disable_device() do.

Previously they returned:

    0:	device was already active (or disabled)
    1:	we just activated (or disabled) device
    <0:	-EBUSY or error from pnp_start_dev() (or pnp_stop_dev())

Now we return only 0 (device is active or disabled) or <0 (error).

All in-tree callers either ignore the return values or check only for
errors (negative values).

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Bjorn Helgaas 2008-02-06 01:40:02 -08:00 committed by Linus Torvalds
parent 6ed3003c19
commit cc8259a666
1 changed files with 4 additions and 4 deletions
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8
drivers/pnp/manager.c
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@ -513,7 +513,7 @@ int pnp_activate_dev(struct pnp_dev *dev)
int error;
if (dev->active)
return 0; /* the device is already active */
return 0;
/* ensure resources are allocated */
if (pnp_auto_config_dev(dev))
@ -524,7 +524,7 @@ int pnp_activate_dev(struct pnp_dev *dev)
return error;
dev->active = 1;
return 1;
return 0;
}
/**
@ -538,7 +538,7 @@ int pnp_disable_dev(struct pnp_dev *dev)
int error;
if (!dev->active)
return 0; /* the device is already disabled */
return 0;
error = pnp_stop_dev(dev);
if (error)
@ -551,7 +551,7 @@ int pnp_disable_dev(struct pnp_dev *dev)
pnp_clean_resource_table(&dev->res);
up(&pnp_res_mutex);
return 1;
return 0;
}
/**