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authorRoland Dreier <rolandd@cisco.com>2006-03-29 09:36:45 -0800
committerRoland Dreier <rolandd@cisco.com>2006-03-29 09:36:45 -0800
commit3f89f834497c0f37f16a3b6c32b1d60782facbca (patch)
tree4a27d2b5ed847fd90678d3e7758fe08b493426e1
parente71ac6032edf77a1e4a81f3e3b260807e94b37a5 (diff)
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 <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 61924cc30e5..fd8a95a9c5d 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,