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-rw-r--r--sound/pci/hda/hda_codec.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 18ef0aa69d9..239cdd855df 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2341,6 +2341,8 @@ int snd_hda_input_mux_info(const struct hda_input_mux *imux,
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = imux->num_items;
+ if (!imux->num_items)
+ return 0;
index = uinfo->value.enumerated.item;
if (index >= imux->num_items)
index = imux->num_items - 1;
@@ -2356,6 +2358,8 @@ int snd_hda_input_mux_put(struct hda_codec *codec,
{
unsigned int idx;
+ if (!imux->num_items)
+ return 0;
idx = ucontrol->value.enumerated.item[0];
if (idx >= imux->num_items)
idx = imux->num_items - 1;