diff options
-rw-r--r-- | drivers/crypto/stm32/stm32-cryp.c | 26 |
1 files changed, 7 insertions, 19 deletions
diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c index cfcb640c20d0..eb525669d4eb 100644 --- a/drivers/crypto/stm32/stm32-cryp.c +++ b/drivers/crypto/stm32/stm32-cryp.c @@ -137,7 +137,6 @@ struct stm32_cryp { struct crypto_engine *engine; - struct mutex lock; /* protects req / areq */ struct ablkcipher_request *req; struct aead_request *areq; @@ -645,18 +644,13 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err) pm_runtime_mark_last_busy(cryp->dev); pm_runtime_put_autosuspend(cryp->dev); - if (is_gcm(cryp) || is_ccm(cryp)) { + if (is_gcm(cryp) || is_ccm(cryp)) crypto_finalize_aead_request(cryp->engine, cryp->areq, err); - cryp->areq = NULL; - } else { + else crypto_finalize_ablkcipher_request(cryp->engine, cryp->req, err); - cryp->req = NULL; - } memset(cryp->ctx->key, 0, cryp->ctx->keylen); - - mutex_unlock(&cryp->lock); } static int stm32_cryp_cpu_start(struct stm32_cryp *cryp) @@ -933,8 +927,6 @@ static int stm32_cryp_prepare_req(struct ablkcipher_request *req, if (!cryp) return -ENODEV; - mutex_lock(&cryp->lock); - rctx = req ? ablkcipher_request_ctx(req) : aead_request_ctx(areq); rctx->mode &= FLG_MODE_MASK; @@ -946,6 +938,7 @@ static int stm32_cryp_prepare_req(struct ablkcipher_request *req, if (req) { cryp->req = req; + cryp->areq = NULL; cryp->total_in = req->nbytes; cryp->total_out = cryp->total_in; } else { @@ -971,6 +964,7 @@ static int stm32_cryp_prepare_req(struct ablkcipher_request *req, * <---------- total_out -----------------> */ cryp->areq = areq; + cryp->req = NULL; cryp->authsize = crypto_aead_authsize(crypto_aead_reqtfm(areq)); cryp->total_in = areq->assoclen + areq->cryptlen; if (is_encrypt(cryp)) @@ -992,19 +986,19 @@ static int stm32_cryp_prepare_req(struct ablkcipher_request *req, if (cryp->in_sg_len < 0) { dev_err(cryp->dev, "Cannot get in_sg_len\n"); ret = cryp->in_sg_len; - goto out; + return ret; } cryp->out_sg_len = sg_nents_for_len(cryp->out_sg, cryp->total_out); if (cryp->out_sg_len < 0) { dev_err(cryp->dev, "Cannot get out_sg_len\n"); ret = cryp->out_sg_len; - goto out; + return ret; } ret = stm32_cryp_copy_sgs(cryp); if (ret) - goto out; + return ret; scatterwalk_start(&cryp->in_walk, cryp->in_sg); scatterwalk_start(&cryp->out_walk, cryp->out_sg); @@ -1016,10 +1010,6 @@ static int stm32_cryp_prepare_req(struct ablkcipher_request *req, } ret = stm32_cryp_hw_init(cryp); -out: - if (ret) - mutex_unlock(&cryp->lock); - return ret; } @@ -1959,8 +1949,6 @@ static int stm32_cryp_probe(struct platform_device *pdev) cryp->dev = dev; - mutex_init(&cryp->lock); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); cryp->regs = devm_ioremap_resource(dev, res); if (IS_ERR(cryp->regs)) |