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serdev: fix memleak on module unload

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Make sure to free all resources associated with the ida on module
exit.

Fixes: cd6484e183 ("serdev: Introduce new bus for serial attached devices")
Cc: stable <[email protected]>	# 4.11
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Johan Hovold 2018-06-13 17:08:59 +02:00 • committed by Greg Kroah-Hartman
commit bc6cf3669d
1 changed files with 1 additions and 0 deletions
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1
drivers/tty/serdev/core.c
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@ -617,6 +617,7 @@ EXPORT_SYMBOL_GPL(__serdev_device_driver_register);
static void __exit serdev_exit(void)
{
bus_unregister(&serdev_bus_type);
ida_destroy(&ctrl_ida);
}
module_exit(serdev_exit);