linux-kernel - [PATCH 2/2] Input: nspire-keypad: Improve a size determination in nspire_keypad

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Message-ID: <ec6d39ee-d1ce-f632-f80f-21de1ed402ee@users.sourceforge.net>
Date:   Sat, 27 Jan 2018 10:55:28 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-input@...r.kernel.org, Daniel Tang <dt.tangr@...il.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/2] Input: nspire-keypad: Improve a size determination in
 nspire_keypad_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 27 Jan 2018 10:36:20 +0100

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

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/input/keyboard/nspire-keypad.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/nspire-keypad.c b/drivers/input/keyboard/nspire-keypad.c
index f13b50213f94..caadc99741c0 100644
--- a/drivers/input/keyboard/nspire-keypad.c
+++ b/drivers/input/keyboard/nspire-keypad.c
@@ -173,8 +173,7 @@ static int nspire_keypad_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	keypad = devm_kzalloc(&pdev->dev, sizeof(struct nspire_keypad),
-			      GFP_KERNEL);
+	keypad = devm_kzalloc(&pdev->dev, sizeof(*keypad), GFP_KERNEL);
 	if (!keypad)
 		return -ENOMEM;
 
-- 
2.16.1