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authorGeert Uytterhoeven <geert+renesas@glider.be>2020-02-11 19:19:26 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2020-02-22 09:25:46 +0800
commitff4d719a5bc7e27eac7002ea6eaea05fa2deb87a (patch)
tree3957ebc9969112a1c9cb73057681870530b1d811 /drivers/crypto/ccree
parent343ee6c4405c2d053f093f68835ecff0cc906a04 (diff)
crypto: ccree - use devm_k[mz]alloc() for AEAD data
As the lifetime of the AEAD data matches the lifetime of the driver, AEAD data can be allocated using the managed allocators. While at it, simplify cc_aead_free() by removing an unneeded cast, and an unneeded check (aead_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/crypto/ccree')
-rw-r--r--drivers/crypto/ccree/cc_aead.c35
-rw-r--r--drivers/crypto/ccree/cc_cipher.c8
-rw-r--r--drivers/crypto/ccree/cc_hash.c9
3 files changed, 21 insertions, 31 deletions
diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c
index be26aaf75e1f..904aa66752b3 100644
--- a/drivers/crypto/ccree/cc_aead.c
+++ b/drivers/crypto/ccree/cc_aead.c
@@ -2615,7 +2615,7 @@ static struct cc_crypto_alg *cc_create_aead_alg(struct cc_alg_template *tmpl,
struct cc_crypto_alg *t_alg;
struct aead_alg *alg;
- t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL);
+ t_alg = devm_kzalloc(dev, sizeof(*t_alg), GFP_KERNEL);
if (!t_alg)
return ERR_PTR(-ENOMEM);
@@ -2645,19 +2645,12 @@ static struct cc_crypto_alg *cc_create_aead_alg(struct cc_alg_template *tmpl,
int cc_aead_free(struct cc_drvdata *drvdata)
{
struct cc_crypto_alg *t_alg, *n;
- struct cc_aead_handle *aead_handle =
- (struct cc_aead_handle *)drvdata->aead_handle;
-
- if (aead_handle) {
- /* Remove registered algs */
- list_for_each_entry_safe(t_alg, n, &aead_handle->aead_list,
- entry) {
- crypto_unregister_aead(&t_alg->aead_alg);
- list_del(&t_alg->entry);
- kfree(t_alg);
- }
- kfree(aead_handle);
- drvdata->aead_handle = NULL;
+ struct cc_aead_handle *aead_handle = drvdata->aead_handle;
+
+ /* Remove registered algs */
+ list_for_each_entry_safe(t_alg, n, &aead_handle->aead_list, entry) {
+ crypto_unregister_aead(&t_alg->aead_alg);
+ list_del(&t_alg->entry);
}
return 0;
@@ -2671,7 +2664,7 @@ int cc_aead_alloc(struct cc_drvdata *drvdata)
int alg;
struct device *dev = drvdata_to_dev(drvdata);
- aead_handle = kmalloc(sizeof(*aead_handle), GFP_KERNEL);
+ aead_handle = devm_kmalloc(dev, sizeof(*aead_handle), GFP_KERNEL);
if (!aead_handle) {
rc = -ENOMEM;
goto fail0;
@@ -2706,18 +2699,16 @@ int cc_aead_alloc(struct cc_drvdata *drvdata)
if (rc) {
dev_err(dev, "%s alg registration failed\n",
t_alg->aead_alg.base.cra_driver_name);
- goto fail2;
- } else {
- list_add_tail(&t_alg->entry, &aead_handle->aead_list);
- dev_dbg(dev, "Registered %s\n",
- t_alg->aead_alg.base.cra_driver_name);
+ goto fail1;
}
+
+ list_add_tail(&t_alg->entry, &aead_handle->aead_list);
+ dev_dbg(dev, "Registered %s\n",
+ t_alg->aead_alg.base.cra_driver_name);
}
return 0;
-fail2:
- kfree(t_alg);
fail1:
cc_aead_free(drvdata);
fail0:
diff --git a/drivers/crypto/ccree/cc_cipher.c b/drivers/crypto/ccree/cc_cipher.c
index d219b5b5d7b4..fc6df7183024 100644
--- a/drivers/crypto/ccree/cc_cipher.c
+++ b/drivers/crypto/ccree/cc_cipher.c
@@ -1705,11 +1705,11 @@ int cc_cipher_alloc(struct cc_drvdata *drvdata)
t_alg->skcipher_alg.base.cra_driver_name);
kfree(t_alg);
goto fail0;
- } else {
- list_add_tail(&t_alg->entry, &drvdata->alg_list);
- dev_dbg(dev, "Registered %s\n",
- t_alg->skcipher_alg.base.cra_driver_name);
}
+
+ list_add_tail(&t_alg->entry, &drvdata->alg_list);
+ dev_dbg(dev, "Registered %s\n",
+ t_alg->skcipher_alg.base.cra_driver_name);
}
return 0;
diff --git a/drivers/crypto/ccree/cc_hash.c b/drivers/crypto/ccree/cc_hash.c
index 738f0debee98..2ca5532c07a2 100644
--- a/drivers/crypto/ccree/cc_hash.c
+++ b/drivers/crypto/ccree/cc_hash.c
@@ -2024,10 +2024,9 @@ int cc_hash_alloc(struct cc_drvdata *drvdata)
driver_hash[alg].driver_name);
kfree(t_alg);
goto fail;
- } else {
- list_add_tail(&t_alg->entry,
- &hash_handle->hash_list);
}
+
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
}
if (hw_mode == DRV_CIPHER_XCBC_MAC ||
hw_mode == DRV_CIPHER_CMAC)
@@ -2049,9 +2048,9 @@ int cc_hash_alloc(struct cc_drvdata *drvdata)
driver_hash[alg].driver_name);
kfree(t_alg);
goto fail;
- } else {
- list_add_tail(&t_alg->entry, &hash_handle->hash_list);
}
+
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
}
return 0;