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crypto: qce - use __free() for a buffer that's always freed

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The buffer allocated in qce_ahash_hmac_setkey is always freed before
returning to use __free() to automate it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Bartosz Golaszewski 2024-12-03 10:19:35 +01:00 committed by Herbert Xu
parent c151535cf4
commit ce8fd0500b
1 changed files with 3 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/crypto/qce/sha.c
View file

@ -3,6 +3,7 @@
* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
*/
#include <linux/cleanup.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
@ -336,7 +337,6 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
struct scatterlist sg;
unsigned int blocksize;
struct crypto_ahash *ahash_tfm;
u8 *buf;
int ret;
const char *alg_name;
@ -370,7 +370,8 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
crypto_req_done, &wait);
crypto_ahash_clear_flags(ahash_tfm, ~0);
buf = kzalloc(keylen + QCE_MAX_ALIGN_SIZE, GFP_KERNEL);
u8 *buf __free(kfree) = kzalloc(keylen + QCE_MAX_ALIGN_SIZE,
GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto err_free_req;
@ -382,7 +383,6 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
kfree(buf);
err_free_req:
ahash_request_free(req);
err_free_ahash: