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authorTakashi Iwai <tiwai@suse.de>2015-04-09 10:25:03 +0200
committerTakashi Iwai <tiwai@suse.de>2015-04-09 10:33:53 +0200
commitb6c09b3c7b54743cbc58af8c27bbae8299c4f8cc (patch)
tree7e181550419c398fa9e8964c0a0c436f2a88e34e /sound/pci/hda
parentd5ac0100a9027bdf488cf20247b1041f26f796f3 (diff)
ALSA: hda/generic - Make snd_hda_gen_path_power_filter() always applicable
Add the check of power_save_node flag at the beginning of the function so that it skips the rest if the flag isn't set. In this way, we can call this function safely no matter whether the widget power-saving is really used or not. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
-rw-r--r--sound/pci/hda/hda_generic.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 46b559832d2c..f0475a19fad7 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -4703,6 +4703,10 @@ unsigned int snd_hda_gen_path_power_filter(struct hda_codec *codec,
hda_nid_t nid,
unsigned int power_state)
{
+ struct hda_gen_spec *spec = codec->spec;
+
+ if (!spec->power_down_unused && !codec->power_save_node)
+ return power_state;
if (power_state != AC_PWRST_D0 || nid == codec->core.afg)
return power_state;
if (get_wcaps_type(get_wcaps(codec, nid)) >= AC_WID_POWER)