crypto: acomp - allow registration of multiple acomps

[mirror_ubuntu-artful-kernel.git] / crypto / acompress.c

diff --git a/crypto/acompress.c b/crypto/acompress.c
index 47d11627cd2096996a7ce0cf82ffa8d710a4087d..1544b7c057fb5660e593c64d2033542fa9d1ea47 100644 (file)
--- a/crypto/acompress.c
+++ b/crypto/acompress.c
@@ -166,5 +166,34 @@ int crypto_unregister_acomp(struct acomp_alg *alg)
 }
 EXPORT_SYMBOL_GPL(crypto_unregister_acomp);
 
+int crypto_register_acomps(struct acomp_alg *algs, int count)
+{
+       int i, ret;
+
+       for (i = 0; i < count; i++) {
+               ret = crypto_register_acomp(&algs[i]);
+               if (ret)
+                       goto err;
+       }
+
+       return 0;
+
+err:
+       for (--i; i >= 0; --i)
+               crypto_unregister_acomp(&algs[i]);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(crypto_register_acomps);
+
+void crypto_unregister_acomps(struct acomp_alg *algs, int count)
+{
+       int i;
+
+       for (i = count - 1; i >= 0; --i)
+               crypto_unregister_acomp(&algs[i]);
+}
+EXPORT_SYMBOL_GPL(crypto_unregister_acomps);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Asynchronous compression type");