From: Sean Young <sean@mess.org>
Date: Wed, 8 Sep 2021 09:22:40 +0000 (+0200)
Subject: media: ir_toy: do not resubmit broken urb
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=92f461517d22d85adb8c24970ee61357b97af0aa;p=linux.git

media: ir_toy: do not resubmit broken urb

This causes the same urb to resubmitted continuously, hogging up a cpu.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---

diff --git a/drivers/media/rc/ir_toy.c b/drivers/media/rc/ir_toy.c
index 2b7c8bba4d6ac..d2d9346eb8f51 100644
--- a/drivers/media/rc/ir_toy.c
+++ b/drivers/media/rc/ir_toy.c
@@ -213,10 +213,20 @@ static void irtoy_in_callback(struct urb *urb)
 	struct irtoy *irtoy = urb->context;
 	int ret;
 
-	if (urb->status == 0)
+	switch (urb->status) {
+	case 0:
 		irtoy_response(irtoy, urb->actual_length);
-	else
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+	case -EPROTO:
+	case -EPIPE:
+		usb_unlink_urb(urb);
+		return;
+	default:
 		dev_dbg(irtoy->dev, "in urb status: %d\n", urb->status);
+	}
 
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 	if (ret && ret != -ENODEV)