diff --git a/sound/pci/asihpi/hpimsgx.c b/sound/pci/asihpi/hpimsgx.c
index f7427f8eb6303e0d63c27940a9c96fb1f4c4e835..761fc62f68f16c7646df8a5dff4d7ac9058b6d49 100644
--- a/sound/pci/asihpi/hpimsgx.c
+++ b/sound/pci/asihpi/hpimsgx.c
@@ -713,7 +713,7 @@ static u16 HPIMSGX__init(struct hpi_message *phm,
 		phr->error = HPI_ERROR_PROCESSING_MESSAGE;
 		return phr->error;
 	}
-	if (hr.error == 0) {
+	if (hr.error == 0 && hr.u.s.adapter_index < HPI_MAX_ADAPTERS) {
 		/* the adapter was created successfully
 		   save the mapping for future use */
 		hpi_entry_points[hr.u.s.adapter_index] = entry_point_func;