From 3f89f834497c0f37f16a3b6c32b1d60782facbca Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Wed, 29 Mar 2006 09:36:45 -0800 Subject: [PATCH] IB/srp: Fix unmapping of fake scatterlist The recently merged patch to create a fake scatterlist for non-SG SCSI commands had a bug: the driver ended up doing dma_unmap_sg() on a scatterlist scmnd->request_buffer rather than the fake scatter list it created. Fix this so that the driver unmaps the same thing it maps. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/srp/ib_srp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 61924cc30e55..fd8a95a9c5d3 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -607,10 +607,10 @@ static void srp_unmap_data(struct scsi_cmnd *scmnd, */ if (likely(scmnd->use_sg)) { nents = scmnd->use_sg; - scat = (struct scatterlist *) scmnd->request_buffer; + scat = scmnd->request_buffer; } else { nents = 1; - scat = (struct scatterlist *) scmnd->request_buffer; + scat = &req->fake_sg; } dma_unmap_sg(target->srp_host->dev->dma_device, scat, nents, -- 2.30.2