linux-kernel - [PATCH 3/6] [media] atmel-isc: Adjust three checks for null pointers

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Date:   Mon, 4 Sep 2017 22:08:38 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Songjun Wu <songjun.wu@...rochip.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/6] [media] atmel-isc: Adjust three checks for null pointers

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 4 Sep 2017 20:54:20 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/media/platform/atmel/atmel-isc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c
index f16bab0105c2..b6048cedb6cc 100644
--- a/drivers/media/platform/atmel/atmel-isc.c
+++ b/drivers/media/platform/atmel/atmel-isc.c
@@ -1590,7 +1590,7 @@ static int isc_async_complete(struct v4l2_async_notifier *notifier)
 	spin_lock_init(&isc->dma_queue_lock);
 
 	sd_entity->config = v4l2_subdev_alloc_pad_config(sd_entity->sd);
-	if (sd_entity->config == NULL)
+	if (!sd_entity->config)
 		return -ENOMEM;
 
 	ret = isc_formats_init(isc);
@@ -1714,7 +1714,7 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 
 		subdev_entity = devm_kzalloc(dev,
 					  sizeof(*subdev_entity), GFP_KERNEL);
-		if (subdev_entity == NULL) {
+		if (!subdev_entity) {
 			of_node_put(rem);
 			ret = -ENOMEM;
 			break;
@@ -1722,7 +1722,7 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 
 		subdev_entity->asd = devm_kzalloc(dev,
 				     sizeof(*subdev_entity->asd), GFP_KERNEL);
-		if (subdev_entity->asd == NULL) {
+		if (!subdev_entity->asd) {
 			of_node_put(rem);
 			ret = -ENOMEM;
 			break;
-- 
2.14.1