crypto: omap-sham - fix memleak

commit 9dbc8a0328 upstream.

Fixes: 8043bb1ae0 ("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>
This commit is contained in:
Bin Liu
2018-04-17 14:53:13 -05:00
committed by Greg Kroah-Hartman
parent ef2aa9f3a7
commit 20f4d771b3

View File

@@ -1081,7 +1081,7 @@ static void omap_sham_finish_req(struct ahash_request *req, int err)
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);