1 files changed, 4 insertions, 2 deletions
diff --git a/src/drv/ps1/sio/src/next.c b/src/drv/ps1/sio/src/next.c
index 4c330ab..6926943 100644
--- a/src/drv/ps1/sio/src/next.c
+++ b/src/drv/ps1/sio/src/next.c
@@ -27,8 +27,10 @@ int drv_ps1_sio_next(struct sio_fifo *const f)
     struct sio_req *const next = f->head->next;
 
     free(f->head);
-
     f->next = next ? next->f : NULL;
-    f->head = next;
+
+    if (!(f->head = next))
+        f->tail = NULL;
+
     return 0;
 }