| commit | 1f7237109951ebe8dc194461716443a5d8caf308 | [log] [tgz] |
|---|---|---|
| author | Herbert Xu <herbert@gondor.apana.org.au> | Thu Apr 02 22:31:22 2015 +0800 |
| committer | Herbert Xu <herbert@gondor.apana.org.au> | Fri Apr 03 17:53:32 2015 +0800 |
| tree | d66524f7b6ed702c7939975abd53af31141599f3 | |
| parent | 13cf394c8c79b5655cdc76f7ae0d9869a1434103 [diff] |
crypto: api - Fix races in crypto_unregister_instance There are multiple problems in crypto_unregister_instance: 1) The cra_refcnt BUG_ON check is racy and can cause crashes. 2) The cra_refcnt check shouldn't exist at all. 3) There is no reference on tmpl to protect the tmpl->free call. This patch rewrites the function using crypto_remove_spawn which now morphs into crypto_remove_instance. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>