[HIFN]: Fix max queue length value

    
All but the last element of the command and result descriptor rings can be
used for crypto requests, fix HIFN_QUEUE_LENGTH.
    
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index a4b1cea59ae6..d6f042370d45 100644
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -371,7 +371,7 @@ static atomic_t hifn_dev_number;
 
 #define HIFN_D_DST_DALIGN               4
 
-#define HIFN_QUEUE_LENGTH               HIFN_D_CMD_RSIZE-5
+#define HIFN_QUEUE_LENGTH               HIFN_D_CMD_RSIZE-1
 
 #define AES_MIN_KEY_SIZE                16
 #define AES_MAX_KEY_SIZE                32