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From: Greg KH <greg@kroah.com>
To: Heiko Carstens <Heiko.Carstens@de.ibm.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
	SCSI Mailing List <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH] zfcp: kfree patch
Date: Tue, 11 Jan 2005 22:47:56 -0800	[thread overview]
Message-ID: <20050112064756.GC1928@kroah.com> (raw)
In-Reply-To: <OF19A85831.9D000076-ONC1256F85.00312F55-C1256F85.0033E6D5@de.ibm.com>

On Mon, Jan 10, 2005 at 10:27:06AM +0100, Heiko Carstens wrote:
> Hmm.. then maybe you could explain to me how e.g.
> drivers/usb/serial/usb-serial.c does this right and keeps the release
> function from being called after usb-serial.ko got unloaded?

usb-serial can not get unloaded if there is a reference held on a sysfs
file owned by it, or if a user has a port open.  This is due to the
module reference counting logic in sysfs attributes, and in the module
reference count stuff in the usb-serial core itself.

Unless I'm missing something, and if so, please let me know and I'll go
fix it up.

thanks,

greg k-h

  reply	other threads:[~2005-01-12  6:48 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-01-08 10:36 [PATCH] zfcp: kfree patch Heiko Carstens
2005-01-08 11:44 ` Arjan van de Ven
2005-01-10  6:41   ` Heiko Carstens
2005-01-10 15:19     ` James Bottomley
2005-01-08 22:33 ` Greg KH
2005-01-10  6:53   ` Heiko Carstens
2005-01-10  7:06     ` Greg KH
2005-01-10  8:10       ` Heiko Carstens
2005-01-10  8:18         ` Greg KH
2005-01-10  9:27           ` Heiko Carstens
2005-01-12  6:47             ` Greg KH [this message]
2005-01-12  8:48               ` Heiko Carstens

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