gpu: nvgpu: fix sparse warning

fix below sparse warning :
drivers/gpu/nvgpu/vgpu/vgpu.c:170:27: warning: Using plain integer as
NULL pointer

Bug 200088648

Change-Id: I5121932140f00cdffe129bb58059251612dce109
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1001516
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/vgpu.c b/drivers/gpu/nvgpu/vgpu/vgpu.c
index 3791d8a7..d97b9e52 100644
--- a/drivers/gpu/nvgpu/vgpu/vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/vgpu.c
@@ -1,7 +1,7 @@
 /*
  * Virtualized GPU
  *
- * Copyright (c) 2014-2015, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -167,7 +167,7 @@ static void vgpu_remove_support(struct platform_device *dev)
 
         if (g->bar1) {
                 iounmap(g->bar1);
-                g->bar1 = 0;
+                g->bar1 = NULL;
         }
 }