[Bisected] [Bug #13821] Replugging USB serial converter uses new device node

Carlos R. Mafra
2009-07-27T02:26:23Z

On Sun 26.Jul'09 at 22:28:27 +0200, Rafael J. Wysocki wrote:
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13821
> Subject : Replugging USB serial converter uses new device node
> Submitter : Ferenc Wagner <wferi-eEbw3PyuezQ@public.gmane.org>
> Date : 2009-07-18 20:04 (9 days old)
> References : http://marc.info/?l=linux-kernel&m=124794754015776&w=4

I was scanning the regressions list and noticed that I could reproduce
this bug.

So I bisected it to commit 335f8514f200e63d689113d29cb7253a5c282967
("tty: Bring the usb tty port structure into more use"), from Alan
Cox.

I did not double check if reverting it from -rc4 fixes the issue,
but I noticed that this patch touches drivers/usb/serial/option.c, which
is the driver I used to test this problem.

If there is anything else I can do (give more info, test patches etc),
please let me know.