From: Stephen Hemminger <shemminger@vyatta.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-kernel@vger.kernel.org,
Haavard Skinnemoen <haavard.skinnemoen@atmel.com>,
Alexander Beregalov <a.beregalov@gmail.com>
Subject: Re: [PATCH 1/4] dmaengine: add a release for dma class devices and dependent infrastructure
Date: Wed, 3 Dec 2008 17:07:41 -0800 [thread overview]
Message-ID: <20081203170741.7f25d756@extreme> (raw)
In-Reply-To: <20081204004646.27790.70015.stgit@dwillia2-linux.ch.intel.com>
On Wed, 03 Dec 2008 17:46:46 -0700
Dan Williams <dan.j.williams@intel.com> wrote:
> Resolves:
> WARNING: at drivers/base/core.c:122 device_release+0x4d/0x52()
> Device 'dma0chan0' does not have a release() function, it is broken and must be fixed.
>
> The dma_chan_dev object is introduced to gear-match sysfs kobject and
> dmaengine channel lifetimes. When a channel is removed access to the
> sysfs entries return -ENODEV until the kobject can be released.
>
> The bulk of the change is updates to existing code to handle the extra
> layer of indirection between a dma_chan and its struct device.
>
> Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
> Cc: Stephen Hemminger <shemminger@vyatta.com>
> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Much better thanks.
next prev parent reply other threads:[~2008-12-04 1:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-04 0:46 [PATCH 0/4] dmaengine redux continued Dan Williams
2008-12-04 0:46 ` [PATCH 1/4] dmaengine: add a release for dma class devices and dependent infrastructure Dan Williams
2008-12-04 1:07 ` Stephen Hemminger [this message]
2008-12-04 0:46 ` [PATCH 2/4] dmaengine: use idr for registering dma device numbers Dan Williams
2008-12-04 0:46 ` [PATCH 3/4] dmaengine: advertise all channels on a device to dma_filter_fn Dan Williams
2008-12-04 0:47 ` [PATCH 4/4] dmaengine: bump initcall level to arch_initcall Dan Williams
2008-12-04 8:51 ` [PATCH 0/4] dmaengine redux continued Guennadi Liakhovetski
2008-12-04 18:52 ` Dan Williams
2008-12-04 20:03 ` Guennadi Liakhovetski
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