diff options
author | Gilad Ben-Yossef <gilad@benyossef.com> | 2017-10-03 11:42:17 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-03 18:28:17 +0200 |
commit | 553aff5f1b174749705b9a3c4715c0f8e3805644 (patch) | |
tree | b1e897f3378d7e77c8bdcdd333931deda25b77b5 /drivers/staging | |
parent | bdd0873dc28d57651ae2ed4e42bb79526ed684ac (diff) |
staging: ccree: simplify OOM handling
Simplify handling of memory allocation failures and remove
redundant log messages
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/ccree/ssi_cipher.c | 11 | ||||
-rw-r--r-- | drivers/staging/ccree/ssi_driver.c | 1 | ||||
-rw-r--r-- | drivers/staging/ccree/ssi_hash.c | 42 | ||||
-rw-r--r-- | drivers/staging/ccree/ssi_ivgen.c | 9 | ||||
-rw-r--r-- | drivers/staging/ccree/ssi_sram_mgr.c | 23 |
5 files changed, 26 insertions, 60 deletions
diff --git a/drivers/staging/ccree/ssi_cipher.c b/drivers/staging/ccree/ssi_cipher.c index d70d86ac2a8e..78706f5bcfb4 100644 --- a/drivers/staging/ccree/ssi_cipher.c +++ b/drivers/staging/ccree/ssi_cipher.c @@ -194,10 +194,9 @@ static int ssi_blkcipher_init(struct crypto_tfm *tfm) /* Allocate key buffer, cache line aligned */ ctx_p->user.key = kmalloc(max_key_buf_size, GFP_KERNEL | GFP_DMA); - if (!ctx_p->user.key) { - dev_dbg(dev, "Allocating key buffer in context failed\n"); - rc = -ENOMEM; - } + if (!ctx_p->user.key) + return -ENOMEM; + dev_dbg(dev, "Allocated key buffer in context. key=@%p\n", ctx_p->user.key); @@ -1245,10 +1244,8 @@ struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template struct crypto_alg *alg; t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL); - if (!t_alg) { - dev_dbg(dev, "failed to allocate t_alg\n"); + if (!t_alg) return ERR_PTR(-ENOMEM); - } alg = &t_alg->crypto_alg; diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/ssi_driver.c index c4b608b77b05..795a087d45a4 100644 --- a/drivers/staging/ccree/ssi_driver.c +++ b/drivers/staging/ccree/ssi_driver.c @@ -212,7 +212,6 @@ static int init_cc_resources(struct platform_device *plat_dev) new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL); if (!new_drvdata) { - dev_dbg(dev, "Failed to allocate drvdata"); rc = -ENOMEM; goto post_drvdata_err; } diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c index a27c988dcd47..d79090ed7f9c 100644 --- a/drivers/staging/ccree/ssi_hash.c +++ b/drivers/staging/ccree/ssi_hash.c @@ -157,34 +157,28 @@ static int ssi_hash_map_request(struct device *dev, int rc = -ENOMEM; state->buff0 = kzalloc(SSI_MAX_HASH_BLCK_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->buff0) { - dev_err(dev, "Allocating buff0 in context failed\n"); + if (!state->buff0) goto fail0; - } + state->buff1 = kzalloc(SSI_MAX_HASH_BLCK_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->buff1) { - dev_err(dev, "Allocating buff1 in context failed\n"); + if (!state->buff1) goto fail_buff0; - } + state->digest_result_buff = kzalloc(SSI_MAX_HASH_DIGEST_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->digest_result_buff) { - dev_err(dev, "Allocating digest_result_buff in context failed\n"); + if (!state->digest_result_buff) goto fail_buff1; - } + state->digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL | GFP_DMA); - if (!state->digest_buff) { - dev_err(dev, "Allocating digest-buffer in context failed\n"); + if (!state->digest_buff) goto fail_digest_result_buff; - } dev_dbg(dev, "Allocated digest-buffer in context ctx->digest_buff=@%p\n", state->digest_buff); if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) { state->digest_bytes_len = kzalloc(HASH_LEN_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->digest_bytes_len) { - dev_err(dev, "Allocating digest-bytes-len in context failed\n"); + if (!state->digest_bytes_len) goto fail1; - } + dev_dbg(dev, "Allocated digest-bytes-len in context state->>digest_bytes_len=@%p\n", state->digest_bytes_len); } else { @@ -192,10 +186,9 @@ static int ssi_hash_map_request(struct device *dev, } state->opad_digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL | GFP_DMA); - if (!state->opad_digest_buff) { - dev_err(dev, "Allocating opad-digest-buffer in context failed\n"); + if (!state->opad_digest_buff) goto fail2; - } + dev_dbg(dev, "Allocated opad-digest-buffer in context state->digest_bytes_len=@%p\n", state->opad_digest_buff); @@ -2057,10 +2050,9 @@ ssi_hash_create_alg(struct ssi_hash_template *template, struct device *dev, struct ahash_alg *halg; t_crypto_alg = kzalloc(sizeof(*t_crypto_alg), GFP_KERNEL); - if (!t_crypto_alg) { - dev_dbg(dev, "failed to allocate t_crypto_alg\n"); + if (!t_crypto_alg) return ERR_PTR(-ENOMEM); - } + t_crypto_alg->ahash_alg = template->template_ahash; halg = &t_crypto_alg->ahash_alg; @@ -2225,12 +2217,8 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata) int alg; hash_handle = kzalloc(sizeof(*hash_handle), GFP_KERNEL); - if (!hash_handle) { - dev_err(dev, "kzalloc failed to allocate %zu B\n", - sizeof(*hash_handle)); - rc = -ENOMEM; - goto fail; - } + if (!hash_handle) + return -ENOMEM; INIT_LIST_HEAD(&hash_handle->hash_list); drvdata->hash_handle = hash_handle; diff --git a/drivers/staging/ccree/ssi_ivgen.c b/drivers/staging/ccree/ssi_ivgen.c index 2982c8b463ac..3f082f41ae8f 100644 --- a/drivers/staging/ccree/ssi_ivgen.c +++ b/drivers/staging/ccree/ssi_ivgen.c @@ -193,12 +193,9 @@ int ssi_ivgen_init(struct ssi_drvdata *drvdata) /* Allocate "this" context */ drvdata->ivgen_handle = kzalloc(sizeof(*drvdata->ivgen_handle), GFP_KERNEL); - if (!drvdata->ivgen_handle) { - dev_err(device, "Not enough memory to allocate IVGEN context (%zu B)\n", - sizeof(*drvdata->ivgen_handle)); - rc = -ENOMEM; - goto out; - } + if (!drvdata->ivgen_handle) + return -ENOMEM; + ivgen_ctx = drvdata->ivgen_handle; /* Allocate pool's header for intial enc. key/IV */ diff --git a/drivers/staging/ccree/ssi_sram_mgr.c b/drivers/staging/ccree/ssi_sram_mgr.c index 25dfd7e974bc..07260d168c91 100644 --- a/drivers/staging/ccree/ssi_sram_mgr.c +++ b/drivers/staging/ccree/ssi_sram_mgr.c @@ -50,29 +50,14 @@ void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata) */ int ssi_sram_mgr_init(struct ssi_drvdata *drvdata) { - struct ssi_sram_mgr_ctx *smgr_ctx; - struct device *dev = drvdata_to_dev(drvdata); - int rc; - /* Allocate "this" context */ - drvdata->sram_mgr_handle = kzalloc( - sizeof(struct ssi_sram_mgr_ctx), GFP_KERNEL); - if (!drvdata->sram_mgr_handle) { - dev_err(dev, "Not enough memory to allocate SRAM_MGR ctx (%zu)\n", - sizeof(struct ssi_sram_mgr_ctx)); - rc = -ENOMEM; - goto out; - } - smgr_ctx = drvdata->sram_mgr_handle; + drvdata->sram_mgr_handle = kzalloc(sizeof(struct ssi_sram_mgr_ctx), + GFP_KERNEL); - /* Pool starts at start of SRAM */ - smgr_ctx->sram_free_offset = 0; + if (!drvdata->sram_mgr_handle) + return -ENOMEM; return 0; - -out: - ssi_sram_mgr_fini(drvdata); - return rc; } /*! |