linux-kernel - [PATCH 2/3] [media] DaVinci-VPBE-Display: Improve a size determination in two functions

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Message-ID: <d4fc91b4-4850-b756-d297-fcebdc8d7131@users.sourceforge.net>
Date:   Fri, 8 Sep 2017 14:32:29 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-media@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Prabhakar Lad <prabhakar.csengg@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] [media] DaVinci-VPBE-Display: Improve a size
 determination in two functions

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 8 Sep 2017 10:50:32 +0200

Replace the specification of data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/media/platform/davinci/vpbe_display.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c
index 5b6fc550736b..afe31900f5de 100644
--- a/drivers/media/platform/davinci/vpbe_display.c
+++ b/drivers/media/platform/davinci/vpbe_display.c
@@ -1305,9 +1305,5 @@ static int init_vpbe_layer(int i, struct vpbe_display *disp_dev,
 	struct video_device *vbd = NULL;
 
 	/* Allocate memory for four plane display objects */
-
-	disp_dev->dev[i] =
-		kzalloc(sizeof(struct vpbe_layer), GFP_KERNEL);
-
-	/* If memory allocation fails, return error */
+	disp_dev->dev[i] = kzalloc(sizeof(*disp_dev->dev[i]), GFP_KERNEL);
 	if (!disp_dev->dev[i])
@@ -1396,6 +1392,5 @@ static int vpbe_display_probe(struct platform_device *pdev)
 
 	printk(KERN_DEBUG "vpbe_display_probe\n");
 	/* Allocate memory for vpbe_display */
-	disp_dev = devm_kzalloc(&pdev->dev, sizeof(struct vpbe_display),
-				GFP_KERNEL);
+	disp_dev = devm_kzalloc(&pdev->dev, sizeof(*disp_dev), GFP_KERNEL);
 	if (!disp_dev)
-- 
2.14.1