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crypto: ccp - Prevent a possible lost CCP command request

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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>
This commit is contained in:
Tom Lendacky 2014-02-24 08:42:02 -06:00 committed by Herbert Xu
parent f829e7a32c
commit 0611451b4e
1 changed files with 4 additions and 0 deletions
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4
drivers/crypto/ccp/ccp-crypto-main.c
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@ -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;