diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2020-02-11 19:19:28 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-02-22 09:25:46 +0800 |
| commit | 91fc6c7b3328c6f72a37e7bc319eb8419f109be3 (patch) | |
| tree | 9a26aeb4578e517055cac7d95c54c7b5c5851eab /drivers | |
| parent | f7c8f992013da1afad6a353b7c73ea35c014d507 (diff) | |
| download | linux-91fc6c7b3328c6f72a37e7bc319eb8419f109be3.tar.bz2 | |
crypto: ccree - use devm_kzalloc() for hash data
As the lifetime of the hash data matches the lifetime of the driver,
hash data can be allocated using the managed allocators.
While at it, simplify cc_hash_free() by removing an unneeded check
(hash_handle is always valid here).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/ccree/cc_hash.c | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/drivers/crypto/ccree/cc_hash.c b/drivers/crypto/ccree/cc_hash.c index 2ca5532c07a2..0c32aa2e6801 100644 --- a/drivers/crypto/ccree/cc_hash.c +++ b/drivers/crypto/ccree/cc_hash.c @@ -1828,7 +1828,7 @@ static struct cc_hash_alg *cc_alloc_hash_alg(struct cc_hash_template *template, struct crypto_alg *alg; struct ahash_alg *halg; - t_crypto_alg = kzalloc(sizeof(*t_crypto_alg), GFP_KERNEL); + t_crypto_alg = devm_kzalloc(dev, sizeof(*t_crypto_alg), GFP_KERNEL); if (!t_crypto_alg) return ERR_PTR(-ENOMEM); @@ -1961,7 +1961,7 @@ int cc_hash_alloc(struct cc_drvdata *drvdata) int rc = 0; int alg; - hash_handle = kzalloc(sizeof(*hash_handle), GFP_KERNEL); + hash_handle = devm_kzalloc(dev, sizeof(*hash_handle), GFP_KERNEL); if (!hash_handle) return -ENOMEM; @@ -2022,7 +2022,6 @@ int cc_hash_alloc(struct cc_drvdata *drvdata) if (rc) { dev_err(dev, "%s alg registration failed\n", driver_hash[alg].driver_name); - kfree(t_alg); goto fail; } @@ -2046,7 +2045,6 @@ int cc_hash_alloc(struct cc_drvdata *drvdata) if (rc) { dev_err(dev, "%s alg registration failed\n", driver_hash[alg].driver_name); - kfree(t_alg); goto fail; } @@ -2056,8 +2054,7 @@ int cc_hash_alloc(struct cc_drvdata *drvdata) return 0; fail: - kfree(drvdata->hash_handle); - drvdata->hash_handle = NULL; + cc_hash_free(drvdata); return rc; } @@ -2066,17 +2063,12 @@ int cc_hash_free(struct cc_drvdata *drvdata) struct cc_hash_alg *t_hash_alg, *hash_n; struct cc_hash_handle *hash_handle = drvdata->hash_handle; - if (hash_handle) { - list_for_each_entry_safe(t_hash_alg, hash_n, - &hash_handle->hash_list, entry) { - crypto_unregister_ahash(&t_hash_alg->ahash_alg); - list_del(&t_hash_alg->entry); - kfree(t_hash_alg); - } - - kfree(hash_handle); - drvdata->hash_handle = NULL; + list_for_each_entry_safe(t_hash_alg, hash_n, &hash_handle->hash_list, + entry) { + crypto_unregister_ahash(&t_hash_alg->ahash_alg); + list_del(&t_hash_alg->entry); } + return 0; } |