1 files changed, 5 insertions, 0 deletions

diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 978dc1801b3a..f6d2985b2520 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -284,6 +284,11 @@ int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus)
                 dev_dbg(bus->dev, "HDA capability ID: 0x%x\n",
                         (cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF);
 
+                if (cur_cap == -1) {
+                        dev_dbg(bus->dev, "Invalid capability reg read\n");
+                        break;
+                }
+
                 switch ((cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF) {
                 case AZX_ML_CAP_ID:
                         dev_dbg(bus->dev, "Found ML capability\n");