svcrdma: fix error handling of rdma_alloc_frmr()

ib_alloc_fast_reg_mr() and ib_alloc_fast_reg_page_list() returns
ERR_PTR() and not NULL. Compile tested only.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 5151f9f..0cf5e8c 100644 (file)
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -730,12 +730,12 @@ static struct svc_rdma_fastreg_mr *rdma_alloc_frmr(struct svcxprt_rdma *xprt)
                goto err;
 
        mr = ib_alloc_fast_reg_mr(xprt->sc_pd, RPCSVC_MAXPAGES);
-       if (!mr)
+       if (IS_ERR(mr))
                goto err_free_frmr;
 
        pl = ib_alloc_fast_reg_page_list(xprt->sc_cm_id->device,
                                         RPCSVC_MAXPAGES);
-       if (!pl)
+       if (IS_ERR(pl))
                goto err_free_mr;
 
        frmr->mr = mr;