From 593dfbd9ca7d8d6f9a01020426b680b78b86bdb2 Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Wed, 10 Jun 2015 22:27:48 +0900 Subject: [PATCH] crypto: drbg - report backend_cra_name when allocation fails Be more verbose and also report ->backend_cra_name when crypto_alloc_shash() or crypto_alloc_cipher() fail in drbg_init_hash_kernel() or drbg_init_sym_kernel() correspondingly. Example DRBG: could not allocate digest TFM handle: hmac(sha256) Signed-off-by: Sergey Senozhatsky Signed-off-by: Herbert Xu --- crypto/drbg.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/crypto/drbg.c b/crypto/drbg.c index 5fad297..a7c2314 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -1635,7 +1635,8 @@ static int drbg_init_hash_kernel(struct drbg_state *drbg) tfm = crypto_alloc_shash(drbg->core->backend_cra_name, 0, 0); if (IS_ERR(tfm)) { - pr_info("DRBG: could not allocate digest TFM handle\n"); + pr_info("DRBG: could not allocate digest TFM handle: %s\n", + drbg->core->backend_cra_name); return PTR_ERR(tfm); } BUG_ON(drbg_blocklen(drbg) != crypto_shash_digestsize(tfm)); @@ -1686,7 +1687,8 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg) tfm = crypto_alloc_cipher(drbg->core->backend_cra_name, 0, 0); if (IS_ERR(tfm)) { - pr_info("DRBG: could not allocate cipher TFM handle\n"); + pr_info("DRBG: could not allocate cipher TFM handle: %s\n", + drbg->core->backend_cra_name); return PTR_ERR(tfm); } BUG_ON(drbg_blocklen(drbg) != crypto_cipher_blocksize(tfm)); -- 2.7.4