From 34d84ec4881d1343bec8c0848fd946e3073e6612 Mon Sep 17 00:00:00 2001
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Mon, 8 May 2017 10:54:17 +0200
Subject: [PATCH] dma-buf: Adjust a null pointer check in dma_buf_attach()

The script "checkpatch.pl" pointed information out like the following.

Comparison to NULL could be written "!attach"

Thus adjust this expression.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
---
 drivers/dma-buf/dma-buf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 9887d72cf804..4a038dcf5361 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -559,7 +559,7 @@ struct dma_buf_attachment *dma_buf_attach(struct dma_buf *dmabuf,
 		return ERR_PTR(-EINVAL);
 
 	attach = kzalloc(sizeof(*attach), GFP_KERNEL);
-	if (attach == NULL)
+	if (!attach)
 		return ERR_PTR(-ENOMEM);
 
 	attach->dev = dev;