On Fri, Apr 03, 2015 at 09:29:44PM +0200, Stephan Mueller wrote: > > What about moving the current crypto_unregister_instance into > __crypto_unregister_instance and creating a new crypto_unregister_instance > that takes the ref count and once it got it, it calls > __crypto_unregister_instance. If it did not get the ref count, it simply > returns because the inst apparently was already removed. > > Only the crypto_unregister_instance is EXPORT_SYMBOL whereas the > __crypto_unregister_instance is static. That's not going to work because you need to grab the reference count before you release the mutex. Let me fix up crypto_user first and then you can use it for your case too (or at least borrow the idea). Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
