[PATCH fixed] srp: fix fmr error handling

["Michael S. Tsirkin" <mst@mellanox.co.il>]

Sorry, the last patch I sent was corrupted, here's an updated version:

---

commit 7289361d5f81463e4abb27334773750279547e8a
Author: Vu Pham <vu@mellanox.com>
Date:   Mon Jul 10 22:38:14 2006 +0300

    [PATCH] srp: fix fmr error handling
    
    srp_unmap_data assumes req->fmr is NULL if the request is not mapped,
    so we must clean it out in case of an error.
    
    Signed-off-by: Vu Pham <vu@mellanox.com>
    Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
    Acked-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 4e22afe..6191180 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -618,6 +618,7 @@ static int srp_map_fmr(struct srp_device
 					dma_pages, page_cnt, &io_addr);
 	if (IS_ERR(req->fmr)) {
 		ret = PTR_ERR(req->fmr);
+		req->fmr = NULL;
 		goto out;
 	}

-- 
MST
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