The patch titled
ACPI: asus_acpi: return -ENODEV when no device found
has been added to the -mm tree. Its filename is
acpi-asus_acpi-return-enodev-when-no-device-found.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ACPI: asus_acpi: return -ENODEV when no device found
From: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
This driver is for non-hot-pluggable hardware. Therefore, if the hardware
isn't present, we want to return -ENODEV so a module load will fail.
We previously returned "result" from the acpi_bus_register_driver() call.
Registering the driver usually succeeds even if no devices are present,
because the ACPI core allows you to load a driver before a device is
hot-added.
Someday the kernel will expose enough information so user-space can tell
what ACPI drivers should be loaded. But the kernel doesn't do that yet, so
distros have to load this driver always and rely on the -ENODEV causing the
load to fail if the hardware isn't found.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Acked-by: Frank Seidel <fseidel@xxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/acpi/asus_acpi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/acpi/asus_acpi.c~acpi-asus_acpi-return-enodev-when-no-device-found drivers/acpi/asus_acpi.c
--- a/drivers/acpi/asus_acpi.c~acpi-asus_acpi-return-enodev-when-no-device-found
+++ a/drivers/acpi/asus_acpi.c
@@ -1367,7 +1367,7 @@ static int __init asus_acpi_init(void)
if (!asus_hotk_found) {
acpi_bus_unregister_driver(&asus_hotk_driver);
remove_proc_entry(PROC_ASUS, acpi_root_dir);
- return result;
+ return -ENODEV;
}
return 0;
_
Patches currently in -mm which might be from bjorn.helgaas@xxxxxx are
acpi-asus_acpi-return-enodev-when-no-device-found.patch
2.6-sony_acpi4.patch
serial-trivial-code-flow-simplification.patch
pnp-handle-sysfs-errors.patch
ioremap-balanced-with-iounmap-for-drivers-video-hpfb.patch
-
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