From: Hector Martin <marcan@marcan.st>
Date: Sun, 29 Oct 2023 06:37:43 +0000 (+0900)
Subject: usb: xhci: Do not panic on event timeouts
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=2fd7037122a920ae22377b06aa5b32651cc71f13;p=u-boot.git

usb: xhci: Do not panic on event timeouts

Now that we always check the return value, just return NULL on timeouts.
We can still log the error since this is a problem, but it's not reason
to panic.

Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Marek Vasut <marex@denx.de>
---

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index a969eafdc8..ae0ab5744d 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -494,8 +494,9 @@ union xhci_trb *xhci_wait_for_event(struct xhci_ctrl *ctrl, trb_type expected)
 	if (expected == TRB_TRANSFER)
 		return NULL;
 
-	printf("XHCI timeout on event type %d... cannot recover.\n", expected);
-	BUG();
+	printf("XHCI timeout on event type %d...\n", expected);
+
+	return NULL;
 }
 
 /*