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Commit cfba73d2 authored by Gilad Ben-Yossef's avatar Gilad Ben-Yossef Committed by Herbert Xu
Browse files

crypto: ccp - use -ENOSPC for transient busy indication 



Replace -EBUSY with -ENOSPC when reporting transient busy
indication in the absence of backlog.

Signed-off-by: default avatarGilad Ben-Yossef <gilad@benyossef.com>
Reviewed-by: default avatarGary R Hook <gary.hook@amd.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 6b80ea38

drivers/crypto/ccp/ccp-crypto-main.c

+3 −5
Original line number Diff line number Diff line
@@ -222,10 +222,11 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) 


	/* Check if the cmd can/should be queued */

	if (req_queue.cmd_count >= CCP_CRYPTO_MAX_QLEN) {

		ret = -EBUSY;

		if (!(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG))

		if (!(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG)) {

			ret = -ENOSPC;

			goto e_lock;

		}

	}



	/* Look for an entry with the same tfm.  If there is a cmd

	 * with the same tfm in the list then the current cmd cannot
@@ -243,9 +244,6 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd) 
		ret = ccp_enqueue_cmd(crypto_cmd->cmd);

		if (!ccp_crypto_success(ret))

			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) {

drivers/crypto/ccp/ccp-dev.c

+5 −2
Original line number Diff line number Diff line
@@ -292,9 +292,12 @@ int ccp_enqueue_cmd(struct ccp_cmd *cmd) 
	i = ccp->cmd_q_count;



	if (ccp->cmd_count >= MAX_CMD_QLEN) {

		if (cmd->flags & CCP_CMD_MAY_BACKLOG) {

			ret = -EBUSY;

		if (cmd->flags & CCP_CMD_MAY_BACKLOG)

			list_add_tail(&cmd->entry, &ccp->backlog);

		} else {

			ret = -ENOSPC;

		}

	} else {

		ret = -EINPROGRESS;

		ccp->cmd_count++;