From 72d6cbb533d4309734606027fe083c4edb0aa7aa Mon Sep 17 00:00:00 2001 From: Hyunchul Lee Date: Mon, 30 Aug 2021 13:27:43 +0900 Subject: ksmbd: smbd: fix dma mapping error in smb_direct_post_send_data Becase smb direct header is mapped and msg->num_sge already is incremented, the decrement should be removed from the condition. Signed-off-by: Hyunchul Lee Signed-off-by: Namjae Jeon Signed-off-by: Steve French --- fs/ksmbd/transport_rdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ksmbd') diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c index 58f530056ac0..52b2556e76b1 100644 --- a/fs/ksmbd/transport_rdma.c +++ b/fs/ksmbd/transport_rdma.c @@ -1168,7 +1168,7 @@ static int smb_direct_post_send_data(struct smb_direct_transport *t, pr_err("failed to map buffer\n"); ret = -ENOMEM; goto err; - } else if (sg_cnt + msg->num_sge > SMB_DIRECT_MAX_SEND_SGES - 1) { + } else if (sg_cnt + msg->num_sge > SMB_DIRECT_MAX_SEND_SGES) { pr_err("buffer not fitted into sges\n"); ret = -E2BIG; ib_dma_unmap_sg(t->cm_id->device, sg, sg_cnt, -- cgit v1.2.3