Commit 996e2523 authored by Herbert Xu's avatar Herbert Xu
Browse files

[CRYPTO] api: Allow replacement when registering new algorithms 



We already allow asynchronous removal of existing algorithm modules.  By
allowing the replacement of existing algorithms, we can replace algorithms
without having to wait for for all existing users to complete.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent d913ea0d

crypto/api.c

+2 −2
Original line number Diff line number Diff line
@@ -267,13 +267,13 @@ int crypto_register_alg(struct crypto_alg *alg) 
	down_write(&crypto_alg_sem);

	

	list_for_each_entry(q, &crypto_alg_list, cra_list) {

		if (!strcmp(q->cra_driver_name, alg->cra_driver_name)) {

		if (q == alg) {

			ret = -EEXIST;

			goto out;

		}

	}

	

	list_add_tail(&alg->cra_list, &crypto_alg_list);

	list_add(&alg->cra_list, &crypto_alg_list);

out:	

	up_write(&crypto_alg_sem);

	return ret;

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