linux-kernel - kobject ->k

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Message-ID: <20071203092607.GA22477@localhost.sw.ru>
Date:	Mon, 3 Dec 2007 12:26:07 +0300
From:	Alexey Dobriyan <adobriyan@...ru>
To:	gregkh@...e.de, akpm@...l.org
Cc:	linux-kernel@...r.kernel.org, kay.sievers@...y.org
Subject: kobject ->k_name memory leak

Hi, Greg!

Commit ce2c9cb0259acd2aed184499ebe41ab00da13b25 aka
"kobject: remove the static array for the name" introduced memory leak
of a module name after modprobe/rmmod. Apparently for modules ->release
callback is NULL.

kobject_cleanup: ->release = 00000000, name = 'foo_sysctl'
Pid: 1927, comm: rmmod Not tainted 2.6.24-rc3-e1cca7e8d484390169777b423a7fe46c7021fec1 #5
 [<c10d4a58>] kobject_cleanup+0xb8/0xc0
 [<c10d4a60>] kobject_release+0x0/0x10
 [<c10d587b>] kref_put+0x2b/0xa0
 [<c11dbe85>] _spin_unlock+0x25/0x40
 [<c1045b78>] free_module+0x78/0xd0
 [<c104773f>] sys_delete_module+0x12f/0x1a0

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