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[PATCH] pnp: PNP: adjust pnp_register_driver signature

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Remove the assumption that pnp_register_driver() returns the number of devices
claimed.  Returning the count is unreliable because devices may be hot-plugged
in the future.

This changes the convention to "zero for success, or a negative error value,"
which matches pci_register_driver(), acpi_bus_register_driver(), and
platform_driver_register().

Signed-off-by: Bjorn Helgaas <[email protected]>
Cc: Adam Belay <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Bjorn Helgaas 2006-03-27 01:17:08 -08:00 • committed by Linus Torvalds
commit 982c609448
3 changed files with 11 additions and 27 deletions
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3
Documentation/pnp.txt
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@ -115,6 +115,9 @@ pnp_unregister_protocol
pnp_register_driver
- adds a PnP driver to the Plug and Play Layer
- this includes driver model integration
- returns zero for success or a negative error number for failure; count
calls to the .add() method if you need to know how many devices bind to
the driver
pnp_unregister_driver
- removes a PnP driver from the Plug and Play Layer