diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-27 23:08:09 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-01-29 11:40:43 +0100 |
| commit | a951c773bc39677ef3fa42814be7f5218a3100b2 (patch) | |
| tree | 49a241142e9a90d0b640f2be5e68d91d951e52db /drivers/acpi/scan.c | |
| parent | 00159a2013269bc0a617de885e4b921349192bd0 (diff) | |
ACPI / scan: Clear match_driver flag in acpi_bus_trim()
Drivers should not bind to struct acpi_device objects that
acpi_bus_trim() has been called for, so make that function
clear flags.match_driver for those objects.
If that is not done, an ACPI driver may theoretically try to operate
a device that is not physically present.
Fixes: 202317a573b2 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Diffstat (limited to 'drivers/acpi/scan.c')
| -rw-r--r-- | drivers/acpi/scan.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index c0f57ff15024..089dc403c43b 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2044,6 +2044,7 @@ void acpi_bus_trim(struct acpi_device *adev) list_for_each_entry_reverse(child, &adev->children, node) acpi_bus_trim(child); + adev->flags.match_driver = false; if (handler) { if (handler->detach) handler->detach(adev); |