Messages in this thread Patch in this message | | | From | Sergey Senozhatsky <> | Subject | [PATCH] crypto/drbg: report backend_cra_name when allocation fails | Date | Wed, 10 Jun 2015 22:27:48 +0900 |
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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 <sergey.senozhatsky@gmail.com> --- crypto/drbg.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/crypto/drbg.c b/crypto/drbg.c index 04836b4..d42f678 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -1590,7 +1590,8 @@ 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)); @@ -1641,7 +1642,8 @@ 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)); -- 2.4.3.368.g7974889
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