crypto: sa2ul - Fix memory leak of rxd

There are two error return paths that are not freeing rxd and causing
memory leaks.  Fix these.

Addresses-Coverity: ("Resource leak")
Fixes: 00c9211f60db ("crypto: sa2ul - Fix DMA mapping API usage")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index f300b0a..ca7484a 100644 (file)
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -1146,8 +1146,10 @@ static int sa_run(struct sa_req *req)
                mapped_sg->sgt.sgl = src;
                mapped_sg->sgt.orig_nents = src_nents;
                ret = dma_map_sgtable(ddev, &mapped_sg->sgt, dir_src, 0);
-               if (ret)
+               if (ret) {
+                       kfree(rxd);
                        return ret;
+               }
 
                mapped_sg->dir = dir_src;
                mapped_sg->mapped = true;
@@ -1155,8 +1157,10 @@ static int sa_run(struct sa_req *req)
                mapped_sg->sgt.sgl = req->src;
                mapped_sg->sgt.orig_nents = sg_nents;
                ret = dma_map_sgtable(ddev, &mapped_sg->sgt, dir_src, 0);
-               if (ret)
+               if (ret) {
+                       kfree(rxd);
                        return ret;
+               }
 
                mapped_sg->dir = dir_src;
                mapped_sg->mapped = true;