linux-kernel - Re: [syzbot] [net?] INFO: rcu detected stall in lapb_t1timer

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Message-ID: <tencent_F6255BBAE6BB63335F9E6F1B6F4BDC1B1408@qq.com>
Date: Sat, 20 Jul 2024 12:41:43 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+0ad4cda8077288e1b15d@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [net?] INFO: rcu detected stall in lapb_t1timer_expiry (2)

msg storm for EPROTO

#syz test: upstream 5e0497553643

diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c
index e8c8bdb9c40b..d3355345c1a3 100644
--- a/drivers/media/usb/gspca/gspca.c
+++ b/drivers/media/usb/gspca/gspca.c
@@ -95,6 +95,7 @@ static void int_irq(struct urb *urb)
 	case -ECONNRESET:
 	case -ENODEV:
 	case -ESHUTDOWN:
+	case -EPROTO:
 		/* Stop is requested either by software or hardware is gone,
 		 * keep the ret value non-zero and don't resubmit later.
 		 */