xen/blkback: Get the 'requeust_queue' properly.

[pandora-kernel.git] / drivers / xen / blkback / blkback.c

diff --git a/drivers/xen/blkback/blkback.c b/drivers/xen/blkback/blkback.c
index a0d3227..3751325 100644 (file)
--- a/drivers/xen/blkback/blkback.c
+++ b/drivers/xen/blkback/blkback.c
@@ -542,6 +542,9 @@ static void dispatch_rw_block_io(struct blkif_st *blkif,
                        goto fail_response;
                }
        }
+       q = bdev_get_queue(preq.bdev);
+       if (!q)
+               goto fail_response;
        /* If we have failed at this point, we need to undo the M2P override,
         * set gnttab_set_unmap_op on all of the grant references and perform
         * the hypercall to unmap the grants - that is all done in