4.9-stable review patch. If anyone has any objections, please let me know.
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From: Bin Liu b-liu@ti.com
commit 9dbc8a0328efa485a6f5b68b867f9f523a3fbeff upstream.
Fixes: 8043bb1ae03cb ("crypto: omap-sham - convert driver logic to use sgs for data xmit")
The memory pages freed in omap_sham_finish_req() were less than those allocated in omap_sham_copy_sgs().
Cc: stable@vger.kernel.org Signed-off-by: Bin Liu b-liu@ti.com Acked-by: Tero Kristo t-kristo@ti.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/crypto/omap-sham.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -1081,7 +1081,7 @@ static void omap_sham_finish_req(struct
if (test_bit(FLAGS_SGS_COPIED, &dd->flags)) free_pages((unsigned long)sg_virt(ctx->sg), - get_order(ctx->sg->length)); + get_order(ctx->sg->length + ctx->bufcnt));
if (test_bit(FLAGS_SGS_ALLOCED, &dd->flags)) kfree(ctx->sg);