On Fri, May 26, 2017 at 3:42 PM, Stephan Müller <smueller@xxxxxxxxxx> wrote:
> Am Donnerstag, 25. Mai 2017, 17:23:47 CEST schrieb Harsh Jain:
>
> Hi Harsh,
>
>> Initialise ctr_completion variable before use.
>
> Thank you very much for catching this.
>
> But I think the chosen function is wrong. When we have an HMAC or Hash DRBG, this completion function does not need to be initialized.
>
> May I ask you to check this patch?
Yup, Its working.
>
> Ciao
> Stephan
>
> ---8<---
>
> From 1ec5f753644eb9005ad758c9bfd75032602c9727 Mon Sep 17 00:00:00 2001
> From: Stephan Mueller <smueller@xxxxxxxxxx>
> Date: Fri, 26 May 2017 12:11:31 +0200
> Subject: [PATCH] crypto: drbg- Fixes panic in wait_for_completion call
>
> Initialise ctr_completion variable before use.
>
> Signed-off-by: Harsh Jain <harshjain.prof@xxxxxxxxx>
> Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
> ---
> crypto/drbg.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/crypto/drbg.c b/crypto/drbg.c
> index fa749f4..433c425 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) {
> --
> 2.9.3
>
>
