staging: lustre: fix sparse error: incompatible types in comparison expression

Comparing two user space addresses to avoid sparse error:

drivers/staging//lustre/lnet/selftest/conrpc.c:490:30: error:
incompatible types in comparison expression (different address spaces)

Signed-off-by: Rui Teng <rui.teng@linux.vnet.ibm.com>
Acked-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index da36c55b86d33539ebd9f3efeaacccaa7033e188..ae7c2772825e422246f2dc6a982055ee64eda615 100644 (file)
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -487,10 +487,9 @@ lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans,
                                   sizeof(struct list_head)))
                        return -EFAULT;
 
-               if (tmp.next == head_up)
-                       return 0;
-
                next = tmp.next;
+               if (next == head_up)
+                       return 0;
 
                ent = list_entry(next, struct lstcon_rpc_ent, rpe_link);