* [PATCH] USB: serial: Destroy serial_minors IDR on module exit
@ 2015-07-08 15:26 Johannes Thumshirn
2015-07-09 8:46 ` Johan Hovold
0 siblings, 1 reply; 2+ messages in thread
From: Johannes Thumshirn @ 2015-07-08 15:26 UTC (permalink / raw)
To: Johan Hovold, Greg Kroah-Hartman
Cc: linux-usb, linux-kernel, Johannes Thumshirn
Destroy serial_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>
---
drivers/usb/serial/usb-serial.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 529066b..46f1f13 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1306,6 +1306,7 @@ static void __exit usb_serial_exit(void)
tty_unregister_driver(usb_serial_tty_driver);
put_tty_driver(usb_serial_tty_driver);
bus_unregister(&usb_serial_bus_type);
+ idr_destroy(&serial_minors);
}
--
2.4.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] USB: serial: Destroy serial_minors IDR on module exit
2015-07-08 15:26 [PATCH] USB: serial: Destroy serial_minors IDR on module exit Johannes Thumshirn
@ 2015-07-09 8:46 ` Johan Hovold
0 siblings, 0 replies; 2+ messages in thread
From: Johan Hovold @ 2015-07-09 8:46 UTC (permalink / raw)
To: Johannes Thumshirn
Cc: Johan Hovold, Greg Kroah-Hartman, linux-usb, linux-kernel
On Wed, Jul 08, 2015 at 05:26:37PM +0200, Johannes Thumshirn wrote:
> Destroy serial_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>
Applied, thanks.
Johan
^ permalink raw reply [flat|nested] 2+ messages in thread
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