diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c
index bae7b1d592c6..afb397c32361 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -855,6 +855,7 @@ static int cs35l56_hda_read_acpi(struct cs35l56_hda *cs35l56, int id)
 			return -ENODEV;
 		}
 		ACPI_COMPANION_SET(cs35l56->base.dev, adev);
+		acpi_dev_put(adev);
 	}
 
 	property = "cirrus,dev-index";