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| author |   Thomas Renninger <trenn@suse.de> | 2010-01-29 17:48:52 +0100 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2010-01-31 21:43:32 -0500 |
| commit | 7779688fc3d1ceddad84846a7b0affbe8e78ec6e (patch) | |
| tree | fff56e1fea8656749666280b857ecac04560e70a /Documentation | |
| parent | ACPI: Add NULL pointer check in acpi_bus_start (diff) | |
| download | linux-dev-7779688fc3d1ceddad84846a7b0affbe8e78ec6e.tar.xz linux-dev-7779688fc3d1ceddad84846a7b0affbe8e78ec6e.zip | |
ACPI: acpi_bus_{scan,bus,add}: return -ENODEV if no device was found
Callers (acpi_memhotplug.c, dock.c and others) check for the return
value of acpi_bus_add() and assume a valid device was returned in
case zero was returned.
Thus return -ENODEV if no device was found in acpi_bus_scan and
propagate this through acpi_bus_add and acpi_bus_start.
Also remove a confusing comment in acpiphp_glue.c, acpi_bus_scan
will and cannot invoke if acpi_bus_add returns no valid device.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions