crypto: tcrypt - Fix module return code when testing by name

We should return 0/-ENOENT instead of 1/0 when testing by name.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index dfeec0c..a890a6792 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -889,7 +889,7 @@
 
 static int do_alg_test(const char *alg, u32 type)
 {
-	return crypto_has_alg(alg, type, CRYPTO_ALG_TYPE_MASK);
+	return crypto_has_alg(alg, type, CRYPTO_ALG_TYPE_MASK) ? 0 : -ENOENT;
 }
 
 static int __init tcrypt_mod_init(void)