[PATCH 6/6] [media] atmel-isi: Adjust a null pointer check in three functions

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Mon, 4 Sep 2017 21:30:48 +0200
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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 <elfr...@users.sourceforge.net>
---
 drivers/media/platform/atmel/atmel-isi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/atmel/atmel-isi.c 
b/drivers/media/platform/atmel/atmel-isi.c
index ac40defce1e7..f2e13dfb19a1 100644
--- a/drivers/media/platform/atmel/atmel-isi.c
+++ b/drivers/media/platform/atmel/atmel-isi.c
@@ -411,7 +411,7 @@ static void buffer_queue(struct vb2_buffer *vb)
        spin_lock_irqsave(&isi->irqlock, flags);
        list_add_tail(&buf->list, &isi->video_buffer_list);
 
-       if (isi->active == NULL) {
+       if (!isi->active) {
                isi->active = buf;
                if (vb2_is_streaming(vb->vb2_queue))
                        start_dma(isi, buf);
@@ -1141,7 +1141,7 @@ static int isi_graph_init(struct atmel_isi *isi)
 
        /* Register the subdevices notifier. */
        subdevs = devm_kzalloc(isi->dev, sizeof(*subdevs), GFP_KERNEL);
-       if (subdevs == NULL) {
+       if (!subdevs) {
                of_node_put(isi->entity.node);
                return -ENOMEM;
        }
@@ -1200,7 +1200,7 @@ static int atmel_isi_probe(struct platform_device *pdev)
                return ret;
 
        isi->vdev = video_device_alloc();
-       if (isi->vdev == NULL) {
+       if (!isi->vdev) {
                ret = -ENOMEM;
                goto err_vdev_alloc;
        }
-- 
2.14.1