[PATCH 1/2] crypto: tcrypt - fix S/G table for test_aead_speed()

[Robert Baronescu]

In case buffer length is a multiple of PAGE_SIZE,
the S/G table is incorrectly generated.
Fix this by handling buflen = k * PAGE_SIZE separately.

Signed-off-by: Robert Baronescu <robert.barone...@nxp.com>
---
 crypto/tcrypt.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 0022a18..bd9b66c 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -221,11 +221,13 @@ static void sg_init_aead(struct scatterlist *sg, char 
*xbuf[XBUFSIZE],
        }
 
        sg_init_table(sg, np + 1);
-       np--;
+       if (rem)
+               np--;
        for (k = 0; k < np; k++)
                sg_set_buf(&sg[k + 1], xbuf[k], PAGE_SIZE);
 
-       sg_set_buf(&sg[k + 1], xbuf[k], rem);
+       if (rem)
+               sg_set_buf(&sg[k + 1], xbuf[k], rem);
 }
 
 static void test_aead_speed(const char *algo, int enc, unsigned int secs,
-- 
1.9.3