From 8d33fff4858afd802c90da36e2020641b1a9599b Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 15 Jan 2016 22:01:08 +0800
Subject: [PATCH] crypto: algif_hash - Fix race condition in hash_check_key

commit ad46d7e33219218605ea619e32553daf4f346b9f upstream.

We need to lock the child socket in hash_check_key as otherwise
two simultaneous calls can cause the parent socket to be freed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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Reading git-format-patch failed