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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-10 13:44:20 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-02-10 13:44:20 +0100 |
| commit | 0a8e5c3d5f0f4929761e6a5bef5358f0ccd8810c (patch) | |
| tree | 59a88b789ac1fb6387901940832f314adc44ed6a /drivers/acpi/dock.c | |
| parent | b28a960c42fcd9cfc987441fa6d1c1a471f0f9ed (diff) | |
| download | linux-0-day-0a8e5c3d5f0f4929761e6a5bef5358f0ccd8810c.tar.gz linux-0-day-0a8e5c3d5f0f4929761e6a5bef5358f0ccd8810c.tar.xz | |
ACPI / dock: Use acpi_device_enumerated() to check if dock is present
After commit 202317a573b2 (ACPI / scan: Add acpi_device objects for
all device nodes in the namespace) acpi_bus_get_device() will always
return 0 for dock devices in dock_notify(), so the dock station
docking code under ACPI_NOTIFY_DEVICE_CHECK will never be executed
and docking will not work as a result of that.
Fix the problem by making dock_notify() use acpi_device_enumerated()
to check the presence of the device instead of checking the return
value of acpi_bus_get_device().
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>
Diffstat (limited to 'drivers/acpi/dock.c')
| -rw-r--r-- | drivers/acpi/dock.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index c431c88faaffa..e9b3081c4fe99 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -609,7 +609,7 @@ static int handle_eject_request(struct dock_station *ds, u32 event) static void dock_notify(struct dock_station *ds, u32 event) { acpi_handle handle = ds->handle; - struct acpi_device *ad; + struct acpi_device *adev = NULL; int surprise_removal = 0; /* @@ -632,7 +632,8 @@ static void dock_notify(struct dock_station *ds, u32 event) switch (event) { case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: - if (!dock_in_progress(ds) && acpi_bus_get_device(handle, &ad)) { + acpi_bus_get_device(handle, &adev); + if (!dock_in_progress(ds) && !acpi_device_enumerated(adev)) { begin_dock(ds); dock(ds); if (!dock_present(ds)) { |