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author | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
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committer | James Morris <james.l.morris@oracle.com> | 2017-11-29 12:47:41 +1100 |
commit | a43a1243adfa8cc682fd4dacab89910865c28031 (patch) | |
tree | 7aef00d973ddaeace8916dca0d2a5b5b33cd28de /crypto/skcipher.c | |
parent | f960b5ebd9ed09bc12e10c712bce82ab58ef0435 (diff) | |
parent | 65cb3654889e0b748abc7756260ca267705aee14 (diff) | |
download | linux-crypto-a43a1243adfa8cc682fd4dacab89910865c28031.tar.gz linux-crypto-a43a1243adfa8cc682fd4dacab89910865c28031.zip |
Merge tag 'v4.15-rc1' into next-seccomp
Linux 4.15-rc1
Diffstat (limited to 'crypto/skcipher.c')
-rw-r--r-- | crypto/skcipher.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/crypto/skcipher.c b/crypto/skcipher.c index 4faa0fd5..d5692e35 100644 --- a/crypto/skcipher.c +++ b/crypto/skcipher.c @@ -426,14 +426,9 @@ static int skcipher_copy_iv(struct skcipher_walk *walk) static int skcipher_walk_first(struct skcipher_walk *walk) { - walk->nbytes = 0; - if (WARN_ON_ONCE(in_irq())) return -EDEADLK; - if (unlikely(!walk->total)) - return 0; - walk->buffer = NULL; if (unlikely(((unsigned long)walk->iv & walk->alignmask))) { int err = skcipher_copy_iv(walk); @@ -452,10 +447,15 @@ static int skcipher_walk_skcipher(struct skcipher_walk *walk, { struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + walk->total = req->cryptlen; + walk->nbytes = 0; + + if (unlikely(!walk->total)) + return 0; + scatterwalk_start(&walk->in, req->src); scatterwalk_start(&walk->out, req->dst); - walk->total = req->cryptlen; walk->iv = req->iv; walk->oiv = req->iv; @@ -509,6 +509,11 @@ static int skcipher_walk_aead_common(struct skcipher_walk *walk, struct crypto_aead *tfm = crypto_aead_reqtfm(req); int err; + walk->nbytes = 0; + + if (unlikely(!walk->total)) + return 0; + walk->flags &= ~SKCIPHER_WALK_PHYS; scatterwalk_start(&walk->in, req->src); |