xprtrdma: checking for NULL instead of IS_ERR()

The rpcrdma_create_req() function returns error pointers or success.  It
never returns NULL.

Fixes: f531a5dbc451 ('xprtrdma: Pre-allocate backward rpc_rqst and send/receive buffers')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c
index 2dcb44f..97554ca 100644 (file)
--- a/net/sunrpc/xprtrdma/backchannel.c
+++ b/net/sunrpc/xprtrdma/backchannel.c
@@ -42,8 +42,8 @@ static int rpcrdma_bc_setup_rqst(struct rpcrdma_xprt *r_xprt,
        size_t size;
 
        req = rpcrdma_create_req(r_xprt);
-       if (!req)
-               return -ENOMEM;
+       if (IS_ERR(req))
+               return PTR_ERR(req);
        req->rl_backchannel = true;
 
        size = RPCRDMA_INLINE_WRITE_THRESHOLD(rqst);