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IB/core: Destroy multcast_idr on module exit

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Destroy multcast_idr on module exit, reclaiming the allocated memory.

This was detected by the following semantic patch (written by Luis Rodriguez
<[email protected]>)
<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 <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Johannes Thumshirn 2015-07-08 17:21:15 +02:00 • committed by Doug Ledford
commit 45d254206f
1 changed files with 1 additions and 0 deletions
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1
drivers/infiniband/core/ucma.c
View file

@ -1616,6 +1616,7 @@ static void __exit ucma_cleanup(void)
device_remove_file(ucma_misc.this_device, &dev_attr_abi_version);
misc_deregister(&ucma_misc);
idr_destroy(&ctx_idr);
idr_destroy(&multicast_idr);
}
module_init(ucma_init);