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dm crypt: fix copy and paste bug in crypt_alloc_req_aead

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commit 004b8ae9e2de55ca7857ba8471209dd3179e088c upstream.

In commit d68b29584c25 ("dm crypt: use GFP_ATOMIC when allocating
crypto requests from softirq") code was incorrectly copy and pasted
from crypt_alloc_req_skcipher()'s crypto request allocation code to
crypt_alloc_req_aead(). It is OK from runtime perspective as both
simple encryption request pointer and AEAD request pointer are part of
a union, but may confuse code reviewers.

Fixes: d68b29584c25 ("dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq")
Cc: stable@vger.kernel.org # v5.9+
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Ignat Korchagin <ignat@cloudflare.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ignat Korchagin 2021-01-19 20:40:15 +00:00 committed by Greg Kroah-Hartman
parent 367733db7a
commit c5f23645ab
1 changed files with 3 additions and 3 deletions
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6
drivers/md/dm-crypt.c
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@ -1481,9 +1481,9 @@ static int crypt_alloc_req_skcipher(struct crypt_config *cc,
static int crypt_alloc_req_aead(struct crypt_config *cc,
struct convert_context *ctx)
{
if (!ctx->r.req) {
ctx->r.req = mempool_alloc(&cc->req_pool, in_interrupt() ? GFP_ATOMIC : GFP_NOIO);
if (!ctx->r.req)
if (!ctx->r.req_aead) {
ctx->r.req_aead = mempool_alloc(&cc->req_pool, in_interrupt() ? GFP_ATOMIC : GFP_NOIO);
if (!ctx->r.req_aead)
return -ENOMEM;
}