From: Stephan Mueller <smueller@chronox.de>
Date: Fri, 26 May 2017 10:11:31 +0000 (+0200)
Subject: crypto: drbg - Fixes panic in wait_for_completion call
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1803bec709f813eef95a0916b6dd9ec265cc757f;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

crypto: drbg - Fixes panic in wait_for_completion call

commit b61929c654f2e725644935737c4c1ea9c741e2f8 upstream.

Initialise ctr_completion variable before use.

Cc: <stable@vger.kernel.org>
Signed-off-by: Harsh Jain <harshjain.prof@gmail.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/crypto/drbg.c b/crypto/drbg.c
index 123d211efa12..8cac3d31a5f8 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1691,6 +1691,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
 		return PTR_ERR(sk_tfm);
 	}
 	drbg->ctr_handle = sk_tfm;
+	init_completion(&drbg->ctr_completion);
 
 	req = skcipher_request_alloc(sk_tfm, GFP_KERNEL);
 	if (!req) {