linux-kernel - [patch] crypto: drbg - fix an error code in drbg_init_sym

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Message-ID: <20160617091618.GC25609@mwanda>
Date:	Fri, 17 Jun 2016 12:16:19 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>,
	Stephan Mueller <smueller@...onox.de>
Cc:	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] crypto: drbg - fix an error code in drbg_init_sym_kernel()

We accidentally return PTR_ERR(NULL) which is success but we should
return -ENOMEM.

Fixes: 355912852115 ('crypto: drbg - use CTR AES instead of ECB AES')
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/crypto/drbg.c b/crypto/drbg.c
index ded8638..6872d15 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1686,7 +1686,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
 	if (!req) {
 		pr_info("DRBG: could not allocate request queue\n");
 		drbg_fini_sym_kernel(drbg);
-		return PTR_ERR(req);
+		return -ENOMEM;
 	}
 	drbg->ctr_req = req;
 	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,