From 91fc6c7b3328c6f72a37e7bc319eb8419f109be3 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 11 Feb 2020 19:19:28 +0100 Subject: 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 Signed-off-by: Herbert Xu --- drivers/crypto/ccree/cc_hash.c | 24 ++++++++---------------- 1 file changed, 8 insertions(+), 16 deletions(-) (limited to 'drivers/crypto/ccree') 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; } -- cgit v1.2.3-59-g8ed1b