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authorHerbert Xu <herbert@gondor.apana.org.au>2019-04-15 14:37:34 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2019-04-18 22:13:46 +0800
commitb257b48cd5830c5b1d0c347eb281f9c28056f881 (patch)
tree7da49f00e4efbf8f2e136af2b4eddd0a397a167c /crypto
parent44427c0fbc09b448b22410978a4ef6ee37599d25 (diff)
downloadlinux-b257b48cd5830c5b1d0c347eb281f9c28056f881.tar.bz2
crypto: lrw - Fix atomic sleep when walking skcipher
When we perform a walk in the completion function, we need to ensure that it is atomic. Fixes: ac3c8f36c31d ("crypto: lrw - Do not use auxiliary buffer") Cc: <stable@vger.kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ondrej Mosnacek <omosnace@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/lrw.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/crypto/lrw.c b/crypto/lrw.c
index 0430ccd08728..08a0e458bc3e 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -212,8 +212,12 @@ static void crypt_done(struct crypto_async_request *areq, int err)
{
struct skcipher_request *req = areq->data;
- if (!err)
+ if (!err) {
+ struct rctx *rctx = skcipher_request_ctx(req);
+
+ rctx->subreq.base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
err = xor_tweak_post(req);
+ }
skcipher_request_complete(req, err);
}