The new vmaster hook, update_tpacpi_mute_led(), calls the original vmaster hook, but I forgot to save the original hook function but keep calling the updated one, which of course results in a stupid endless loop. Fixed now.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/hda/thinkpad_helper.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c index 8492b8a3ce47..5799fbc24c28 100644 --- a/sound/pci/hda/thinkpad_helper.c +++ b/sound/pci/hda/thinkpad_helper.c @@ -8,6 +8,7 @@ #include <linux/thinkpad_acpi.h>

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) @@ -30,11 +31,8 @@ static bool is_thinkpad(struct hda_codec *codec)

static void update_tpacpi_mute_led(void *private_data, int enabled) { - struct hda_codec *codec = private_data; - struct hda_gen_spec *spec = codec->spec; - - if (spec->vmaster_mute.hook) - spec->vmaster_mute.hook(private_data, enabled); + if (old_vmaster_hook) + old_vmaster_hook(private_data, enabled);

if (led_set_func) led_set_func(TPACPI_LED_MUTE, !enabled); @@ -70,6 +68,7 @@ static void hda_fixup_thinkpad_acpi(struct hda_codec *codec,

removefunc = true; if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { + old_vmaster_hook = spec->vmaster_mute.hook; spec->vmaster_mute.hook = update_tpacpi_mute_led; removefunc = false; } @@ -86,6 +85,7 @@ static void hda_fixup_thinkpad_acpi(struct hda_codec *codec, if (led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) { symbol_put(tpacpi_led_set); led_set_func = NULL; + old_vmaster_hook = NULL; } }