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| author | Cyrille Pitchen <cyrille.pitchen@atmel.com> | 2017-01-26 17:07:55 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-02-03 11:16:14 +0100 |
| commit | a1f613f167a36610d238b66f5e49bfdb1d04aa89 (patch) | |
| tree | bfd50505dec820a77b74a9f8de1ddbc19e2328eb /drivers/crypto/atmel-aes.c | |
| parent | crypto: atmel-sha - add support to hmac(shaX) (diff) | |
| download | linux-a1f613f167a36610d238b66f5e49bfdb1d04aa89.tar.xz linux-a1f613f167a36610d238b66f5e49bfdb1d04aa89.zip | |
crypto: atmel-aes - fix atmel_aes_handle_queue()
This patch fixes the value returned by atmel_aes_handle_queue(), which
could have been wrong previously when the crypto request was started
synchronously but became asynchronous during the ctx->start() call.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/atmel-aes.c')
| -rw-r--r-- | drivers/crypto/atmel-aes.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index 0e3d0d655b96..9fd2f63b8bc0 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -879,6 +879,7 @@ static int atmel_aes_handle_queue(struct atmel_aes_dev *dd, struct crypto_async_request *areq, *backlog; struct atmel_aes_base_ctx *ctx; unsigned long flags; + bool start_async; int err, ret = 0; spin_lock_irqsave(&dd->lock, flags); @@ -904,10 +905,12 @@ static int atmel_aes_handle_queue(struct atmel_aes_dev *dd, dd->areq = areq; dd->ctx = ctx; - dd->is_async = (areq != new_areq); + start_async = (areq != new_areq); + dd->is_async = start_async; + /* WARNING: ctx->start() MAY change dd->is_async. */ err = ctx->start(dd); - return (dd->is_async) ? ret : err; + return (start_async) ? ret : err; } |