linux-kernel - [PATCH 3/3] Input: bcm5974: Improve a size determination in bcm5974

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Message-ID: <02af8e7d-b6f9-10f9-4f56-de657477bfd5@users.sourceforge.net>
Date:   Wed, 24 Jan 2018 21:32:08 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-input@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Henrik Rydberg <rydberg@...math.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/3] Input: bcm5974: Improve a size determination in
 bcm5974_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 24 Jan 2018 21:21:11 +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/mouse/bcm5974.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 685f56c08931..c827b31c8530 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -915,7 +915,7 @@ static int bcm5974_probe(struct usb_interface *iface,
 	cfg = bcm5974_get_config(udev);
 
 	/* allocate memory for our device state and initialize it */
-	dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL);
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!dev || !input_dev) {
 		dev_err(&iface->dev, "out of memory\n");
-- 
2.16.1