diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/ccp/ccp-crypto-main.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/crypto/ccp/ccp-crypto-main.c b/drivers/crypto/ccp/ccp-crypto-main.c index 7d98635c2c5..20dc848481e 100644 --- a/drivers/crypto/ccp/ccp-crypto-main.c +++ b/drivers/crypto/ccp/ccp-crypto-main.c @@ -205,6 +205,7 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) { struct ccp_crypto_cmd *active = NULL, *tmp; unsigned long flags; + bool free_cmd = true; int ret; spin_lock_irqsave(&req_queue_lock, flags); @@ -231,7 +232,10 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) if (!active) { ret = ccp_enqueue_cmd(crypto_cmd->cmd); if (!ccp_crypto_success(ret)) - goto e_lock; + goto e_lock; /* Error, don't queue it */ + if ((ret == -EBUSY) && + !(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG)) + goto e_lock; /* Not backlogging, don't queue it */ } if (req_queue.cmd_count >= CCP_CRYPTO_MAX_QLEN) { @@ -244,9 +248,14 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) req_queue.cmd_count++; list_add_tail(&crypto_cmd->entry, &req_queue.cmds); + free_cmd = false; + e_lock: spin_unlock_irqrestore(&req_queue_lock, flags); + if (free_cmd) + kfree(crypto_cmd); + return ret; } @@ -262,7 +271,6 @@ int ccp_crypto_enqueue_request(struct crypto_async_request *req, { struct ccp_crypto_cmd *crypto_cmd; gfp_t gfp; - int ret; gfp = req->flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC; @@ -287,11 +295,7 @@ int ccp_crypto_enqueue_request(struct crypto_async_request *req, else cmd->flags &= ~CCP_CMD_MAY_BACKLOG; - ret = ccp_crypto_enqueue_cmd(crypto_cmd); - if (!ccp_crypto_success(ret)) - kfree(crypto_cmd); - - return ret; + return ccp_crypto_enqueue_cmd(crypto_cmd); } struct scatterlist *ccp_crypto_sg_table_add(struct sg_table *table, |