From: Johannes Thumshirn <jthumshirn@suse.de>
Date: Wed, 8 Jul 2015 15:25:42 +0000 (+0200)
Subject: cdc-acm: Destroy acm_minors IDR on module exit
X-Git-Tag: omap-for-v4.3/fixes-merge-window~184^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91b725600d8f27d759d211e36dda6182c6f93ec6;p=pandora-kernel.git

cdc-acm: Destroy acm_minors IDR on module exit

Destroy acm_minors IDR on module exit, reclaiming the allocated memory.

This was detected by the following semantic patch (written by Luis Rodriguez
<mcgrof@suse.com>)
<SmPL>
@ defines_module_init @
declarer name module_init, module_exit;
declarer name DEFINE_IDR;
identifier init;
@@

module_init(init);

@ defines_module_exit @
identifier exit;
@@

module_exit(exit);

@ declares_idr depends on defines_module_init && defines_module_exit @
identifier idr;
@@

DEFINE_IDR(idr);

@ on_exit_calls_destroy depends on declares_idr && defines_module_exit @
identifier declares_idr.idr, defines_module_exit.exit;
@@

exit(void)
{
 ...
 idr_destroy(&idr);
 ...
}

@ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @
identifier declares_idr.idr, defines_module_exit.exit;
@@

exit(void)
{
 ...
 +idr_destroy(&idr);
 }
</SmPL>

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Oliver Neukum <oneukum@suse.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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