Commit 0611451b authored Feb 24, 2014 by Tom Lendacky Committed by Herbert Xu Feb 27, 2014

crypto: ccp - Prevent a possible lost CCP command request



If a CCP command has been queued for processing at the
crypto layer then, when dequeueing it for processing, the
"can backlog" flag must be set so that the request isn't
lost if the CCP backlog queue limit is reached.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

parent f829e7a3

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

+4 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,10 @@ static void ccp_crypto_complete(void *data, int err)

		/* Submit the next cmd */
		while (held) {
		/* Since we have already queued the cmd, we must indicate that
		* we can backlog so as not to "lose" this request.
		*/
		held->cmd->flags \|= CCP_CMD_MAY_BACKLOG;
		ret = ccp_enqueue_cmd(held->cmd);
		if (ccp_crypto_success(ret))
		break;