1 files changed, 1 insertions, 1 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 6e0de65f1f3a..3252945f3743 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -731,7 +731,7 @@ static void /*__devinit*/ setup_fg_nodes(struct hda_codec *codec)
         for (i = 0; i < total_nodes; i++, nid++) {
                 function_id = snd_hda_param_read(codec, nid,
                                                 AC_PAR_FUNCTION_TYPE);
-                switch (function_id) {
+                switch (function_id & 0xff) {
                 case AC_GRP_AUDIO_FUNCTION:
                         codec->afg = nid;
                         codec->afg_function_id = function_id & 0xff;