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Date:	Wed, 12 Sep 2007 13:21:22 -0500
From:	Andy Fleming <>
To:	Anton Vorontsov <>
Subject: Re: [PATCH] phy: implement release function

On Sep 12, 2007, at 06:26, Anton Vorontsov wrote:

> Lately I've got this nice badness on mdio bus removal:
> Device 'e0103120:06' does not have a release() function, it is  
> broken and must be fixed.
> ------------[ cut here ]------------
> Badness at drivers/base/core.c:107
> NIP: c015c1a8 LR: c015c1a8 CTR: c0157488
> REGS: c34bdcf0 TRAP: 0700   Not tainted  (2.6.23-rc5-g9ebadfbb-dirty)
> MSR: 00029032 <EE,ME,IR,DR>  CR: 24088422  XER: 00000000
> ...
> [c34bdda0] [c015c1a8] device_release+0x78/0x80 (unreliable)
> [c34bddb0] [c01354cc] kobject_cleanup+0x80/0xbc
> [c34bddd0] [c01365f0] kref_put+0x54/0x6c
> [c34bdde0] [c013543c] kobject_put+0x24/0x34
> [c34bddf0] [c015c384] put_device+0x1c/0x2c
> [c34bde00] [c0180e84] mdiobus_unregister+0x2c/0x58
> ...
> Though actually there is nothing broken, it just device
> subsystem core expects another "pattern" of resource managment.
> This patch implement phy device's release function, thus
> we're getting rid of this badness.
> Also small hidden bug fixed, hope none other introduced. ;-)
> Signed-off-by: Anton Vorontsov <>

Acked-by: Andy Fleming <>

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