On 11/23/2015 10:34 PM, Lukas Wunner wrote:
Use shiny new acpi_dev_present and remove all the boilerplate to search
for a particular ACPI device. No functional change.
Cc: Hui Wang <hui.wang@xxxxxxxxxxxxx>
The [PATCH 4/5] looks fine to me.
Acked-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>
---
sound/pci/hda/thinkpad_helper.c | 17 ++---------------
1 file changed, 2 insertions(+), 15 deletions(-)
diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index 0a4ad5f..59ab6ce 100644
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -10,23 +10,10 @@
static int (*led_set_func)(int, bool);
static void (*old_vmaster_hook)(void *, int);
-static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
- void **rv)
-{
- bool *found = context;
- *found = true;
- return AE_OK;
-}
-
static bool is_thinkpad(struct hda_codec *codec)
{
- bool found = false;
- if (codec->core.subsystem_id >> 16 != 0x17aa)
- return false;
- if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
- return true;
- found = false;
- return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
+ return (codec->core.subsystem_id >> 16 == 0x17aa) &&
+ (acpi_dev_present("LEN0068") || acpi_dev_present("IBM0068"));
}
static void update_tpacpi_mute_led(void *private_data, int enabled)
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