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-rw-r--r--drivers/crypto/ccp/ccp-crypto-sha.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c
index 873f23425245..96531571f7cf 100644
--- a/drivers/crypto/ccp/ccp-crypto-sha.c
+++ b/drivers/crypto/ccp/ccp-crypto-sha.c
@@ -198,10 +198,9 @@ static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
{
struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
struct crypto_shash *shash = ctx->u.sha.hmac_tfm;
- struct {
- struct shash_desc sdesc;
- char ctx[crypto_shash_descsize(shash)];
- } desc;
+
+ SHASH_DESC_ON_STACK(sdesc, shash);
+
unsigned int block_size = crypto_shash_blocksize(shash);
unsigned int digest_size = crypto_shash_digestsize(shash);
int i, ret;
@@ -216,11 +215,11 @@ static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
if (key_len > block_size) {
/* Must hash the input key */
- desc.sdesc.tfm = shash;
- desc.sdesc.flags = crypto_ahash_get_flags(tfm) &
+ sdesc->tfm = shash;
+ sdesc->flags = crypto_ahash_get_flags(tfm) &
CRYPTO_TFM_REQ_MAY_SLEEP;
- ret = crypto_shash_digest(&desc.sdesc, key, key_len,
+ ret = crypto_shash_digest(sdesc, key, key_len,
ctx->u.sha.key);
if (ret) {
crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);