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Subject: [PATCH 2/2] Input: sur40: Improve a size determination in
 sur40_probe()
From:   SF Markus Elfring <elfring@users.sourceforge.net>
To:     linux-input@vger.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Florian Echtler <floe@butterbrot.org>,
        Johan Hovold <johan@kernel.org>,
        Martin Kaltenbrunner <modin@yuri.at>,
        Martin Kepplinger <martink@posteo.de>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        kernel-janitors@vger.kernel.org
References: <a7e25da3-587a-f0e8-d574-8066b340d9a6@users.sourceforge.net>
Message-ID: <11e0b313-f8c2-93ec-0324-24b30053a586@users.sourceforge.net>
Date:   Sat, 20 Jan 2018 22:30:08 +0100
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 20 Jan 2018 22:16:14 +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@users.sourceforge.net>
---
 drivers/input/touchscreen/sur40.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index c7a0a92b2044..946e1a0328b4 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -550,7 +550,7 @@ static int sur40_probe(struct usb_interface *interface,
 		return -ENODEV;
 
 	/* Allocate memory for our device state and initialize it. */
-	sur40 = kzalloc(sizeof(struct sur40_state), GFP_KERNEL);
+	sur40 = kzalloc(sizeof(*sur40), GFP_KERNEL);
 	if (!sur40)
 		return -ENOMEM;
 
-- 
2.15.1