ALSA: hda - Check all inputs for is_active_nid_for_any()
authorTakashi Iwai <tiwai@suse.de>
Mon, 24 Aug 2015 08:45:27 +0000 (10:45 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 13 Sep 2015 16:07:47 +0000 (09:07 -0700)
commit 9d2b48f7304aafaefbf0794a556ab4e307929d24 upstream.

The is_active_nid_for_any() function in the generic parser is supposed
to check all connections from/to the given widget, but the current
code checks only the first input connection (index = 0).

This patch corrects the code to check all inputs by passing -1 to
index argument.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=102521
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
sound/pci/hda/hda_generic.c

index ac0db16..7e89609 100644 (file)
@@ -671,7 +671,8 @@ static bool is_active_nid(struct hda_codec *codec, hda_nid_t nid,
                }
                for (i = 0; i < path->depth; i++) {
                        if (path->path[i] == nid) {
-                               if (dir == HDA_OUTPUT || path->idx[i] == idx)
+                               if (dir == HDA_OUTPUT || idx == -1 ||
+                                   path->idx[i] == idx)
                                        return true;
                                break;
                        }
@@ -682,7 +683,7 @@ static bool is_active_nid(struct hda_codec *codec, hda_nid_t nid,
 
 /* check whether the NID is referred by any active paths */
 #define is_active_nid_for_any(codec, nid) \
-       is_active_nid(codec, nid, HDA_OUTPUT, 0)
+       is_active_nid(codec, nid, HDA_OUTPUT, -1)
 
 /* get the default amp value for the target state */
 static int get_amp_val_to_activate(struct hda_codec *codec, hda_nid_t nid,