check if urb is null in sunxi

2023-03-12 14:56:29 +08:00
parent 854e633808
commit cda6e48fc1
1 changed files with 3 additions and 0 deletions
--- a/port/musb/usb_hc_musb.c
+++ b/port/musb/usb_hc_musb.c
@@ -738,6 +738,9 @@ void handle_ep0(void)

    pipe = (struct musb_pipe *)&g_musb_hcd.pipe_pool[0][0];
    urb = pipe->urb;
+    if (urb == NULL) {
+        return;
+    }

    musb_set_active_ep(0);
    ep0_status = HWREGB(USB_BASE + MUSB_IND_TXCSRL_OFFSET);