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crypto: ccp - Update the command queue on errors 

Move the command queue tail pointer when an error is
detected. Always return the error.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gary R Hook 2017-02-09 15:49:57 -06:00 committed by Herbert Xu
parent a60496a0ca
commit 4cdf101ef4
1 changed files with 5 additions and 2 deletions
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7
drivers/crypto/ccp/ccp-dev-v5.c
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@ -250,17 +250,20 @@ static int ccp5_do_cmd(struct ccp5_desc *desc,
ret = wait_event_interruptible(cmd_q->int_queue, ret = wait_event_interruptible(cmd_q->int_queue,
cmd_q->int_rcvd); cmd_q->int_rcvd);
if (ret || cmd_q->cmd_error) { if (ret || cmd_q->cmd_error) {
/* Log the error and flush the queue by
* moving the head pointer
*/
if (cmd_q->cmd_error) if (cmd_q->cmd_error)
ccp_log_error(cmd_q->ccp, ccp_log_error(cmd_q->ccp,
cmd_q->cmd_error); cmd_q->cmd_error);
/* A version 5 device doesn't use Job IDs... */ iowrite32(tail, cmd_q->reg_head_lo);
if (!ret) if (!ret)
ret = -EIO; ret = -EIO;
} }
cmd_q->int_rcvd = 0; cmd_q->int_rcvd = 0;
} }
return 0; return ret;
} }
static int ccp5_perform_aes(struct ccp_op *op) static int ccp5_perform_aes(struct ccp_op *op)