From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benedikt Spranger <b.spranger@linutronix.de>,
netdev@vger.kernel.org,
Alexander Frank <Alexander.Frank@eberspaecher.com>,
"Hans J. Koch" <hjk@hansjkoch.de>,
Holger Dengler <dengler@linutronix.de>
Subject: Re: [PATCH 1/7] uio: add module owner to prevent inappropriate module unloading
Date: Thu, 15 Aug 2013 10:18:17 +0200 [thread overview]
Message-ID: <520C8EC9.6040603@linutronix.de> (raw)
In-Reply-To: <20130815080901.GC7080@kroah.com>
On 08/15/2013 10:09 AM, Greg Kroah-Hartman wrote:
> Do you have a specific example of an in-tree UIO driver that has this
> problem that I can look at to try to understand this better?
grep for "uio_pdrv" and you find a few devices in arm and sh tree. Each
one is created once at boot time and never removed. With mfd the device
can be removed.
If you look now at uio_write() then you will notice that it will
deference idev->info->irqcontrol but once the device is gone the memory
starting at info is gone, not to mention the code behind irqcontrol.
> Still confused,
>
> greg k-h
Sebastian
next prev parent reply other threads:[~2013-08-15 8:18 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-13 9:08 [PATCH 0/7] add FlexRay support Benedikt Spranger
2013-08-13 9:08 ` Benedikt Spranger
2013-08-13 9:08 ` [PATCH 1/7] uio: add module owner to prevent inappropriate module unloading Benedikt Spranger
2013-08-13 17:48 ` Greg Kroah-Hartman
2013-08-14 7:19 ` Benedikt Spranger
2013-08-14 16:33 ` Greg Kroah-Hartman
2013-08-15 6:42 ` Benedikt Spranger
2013-08-15 6:59 ` Greg Kroah-Hartman
2013-08-15 7:27 ` Benedikt Spranger
2013-08-15 8:09 ` Greg Kroah-Hartman
2013-08-15 8:18 ` Sebastian Andrzej Siewior [this message]
2013-08-15 15:55 ` Greg Kroah-Hartman
2013-08-15 16:03 ` Sebastian Andrzej Siewior
2013-08-15 16:42 ` Greg Kroah-Hartman
2013-08-15 16:54 ` Sebastian Andrzej Siewior
2013-08-15 17:13 ` Greg Kroah-Hartman
2013-08-13 9:08 ` [PATCH 2/7] uio: Allow to create custom UIO attributes Benedikt Spranger
2013-08-13 17:54 ` Greg Kroah-Hartman
2013-08-13 9:08 ` [PATCH 3/7] mfd: core: copy DMA mask and params from parent Benedikt Spranger
2013-08-13 10:03 ` Lee Jones
2013-08-13 9:08 ` [PATCH 4/7] mfd: add MFD based flexcard driver Benedikt Spranger
2013-08-13 9:55 ` Lee Jones
2013-08-14 8:12 ` Benedikt Spranger
2013-08-14 9:45 ` Lee Jones
2013-08-13 9:08 ` [PATCH 5/7] clocksource: Add flexcard support Benedikt Spranger
2013-08-13 9:08 ` [PATCH 6/7] net: add the AF_FLEXRAY protocol Benedikt Spranger
2013-08-18 18:50 ` Oliver Hartkopp
2013-08-13 9:08 ` [PATCH 7/7] net: add a flexray driver Benedikt Spranger
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