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crypto: ixp4xx - Fix error handling path in 'aead_perform()'

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In commit 0f987e25cb, the source processing has been moved in front of
the destination processing, but the error handling path has not been
modified accordingly.
Free resources in the correct order to avoid some leaks.

Cc: <stable@vger.kernel.org>
Fixes: 0f987e25cb ("crypto: ixp4xx - Fix false lastlen uninitialised warning")
Reported-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Herbert Xu 2017-08-02 16:40:47 +08:00
parent 60c4081ec4
commit 28389575a8
1 changed files with 3 additions and 3 deletions
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6
drivers/crypto/ixp4xx_crypto.c
View file

@ -1073,7 +1073,7 @@ static int aead_perform(struct aead_request *req, int encrypt,
req_ctx->hmac_virt = dma_pool_alloc(buffer_pool, flags,
&crypt->icv_rev_aes);
if (unlikely(!req_ctx->hmac_virt))
goto free_buf_src;
goto free_buf_dst;
if (!encrypt) {
scatterwalk_map_and_copy(req_ctx->hmac_virt,
req->src, cryptlen, authsize, 0);
@ -1088,10 +1088,10 @@ static int aead_perform(struct aead_request *req, int encrypt,
BUG_ON(qmgr_stat_overflow(SEND_QID));
return -EINPROGRESS;
free_buf_src:
free_buf_chain(dev, req_ctx->src, crypt->src_buf);
free_buf_dst:
free_buf_chain(dev, req_ctx->dst, crypt->dst_buf);
free_buf_src:
free_buf_chain(dev, req_ctx->src, crypt->src_buf);
crypt->ctl_flags = CTL_FLAG_UNUSED;
return -ENOMEM;
}