diff --git a/source/io.c b/source/io.c
index cc35844f..7757cf16 100644
--- a/source/io.c
+++ b/source/io.c
@@ -209,18 +209,22 @@ static uacpi_status access_field_unit(
 
         switch (op) {
         case UACPI_REGION_OP_READ:
-            return uacpi_read_field_unit(
+            ret = uacpi_read_field_unit(
                 field->data, in_out, field->access_width_bytes
             );
+            break;
         case UACPI_REGION_OP_WRITE:
-            return uacpi_write_field_unit(
+            ret = uacpi_write_field_unit(
                 field->data, in_out, field->access_width_bytes
             );
+            break;
         default:
             ret = UACPI_STATUS_INVALID_ARGUMENT;
-            goto out;
+            break;
         }
 
+        goto out;
+
     default:
         uacpi_error("invalid field unit kind %d\n", field->kind);
         ret = UACPI_STATUS_INVALID_ARGUMENT;