Re: [syzbot] [i2c?] [usb?] INFO: task hung in em28xx_i2c_unregister

[Hillf Danton]

> Date: Mon, 31 Aug 2026 14:17:40 -0700	[thread overview]
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    a23cbb05744b Merge tag 'timers-urgent-2026-08-30' of git:/..
> git tree:       upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=12a6d379580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=5e4e3a0e188a497e
> dashboard link: https://syzkaller.appspot.com/bug?extid=f669f02a0fcc5b2148f2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12d1f379580000

#syz test

--- x/drivers/i2c/i2c-core-base.c
+++ y/drivers/i2c/i2c-core-base.c
@@ -1844,7 +1844,7 @@ void i2c_del_adapter(struct i2c_adapter
 	 */
 	init_completion(&adap->dev_released);
 	device_unregister(&adap->dev);
-	wait_for_completion(&adap->dev_released);
+	wait_for_completion_timeout(&adap->dev_released, 50 * HZ);
 
 	/* free bus id */
 	mutex_lock(&core_lock);
--