linux-kernel - [PATCH 2/3] serial: max3100: Improve a size determination in max3100

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Date:   Fri, 8 Dec 2017 21:12:50 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-serial@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/3] serial: max3100: Improve a size determination in
 max3100_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 8 Dec 2017 20:32:09 +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/tty/serial/max3100.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c
index b7b7e6582f3f..00c0e650537d 100644
--- a/drivers/tty/serial/max3100.c
+++ b/drivers/tty/serial/max3100.c
@@ -761,7 +761,7 @@ static int max3100_probe(struct spi_device *spi)
 		return -ENOMEM;
 	}
 
-	max3100s[i] = kzalloc(sizeof(struct max3100_port), GFP_KERNEL);
+	max3100s[i] = kzalloc(sizeof(*max3100s[i]), GFP_KERNEL);
 	if (!max3100s[i]) {
 		mutex_unlock(&max3100s_lock);
 		return -ENOMEM;
-- 
2.15.1