linux-kernel - [PATCH 06/13] DRBD-receiver: Improve a size determination in receive

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Date:   Sat, 10 Sep 2016 22:28:09 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     drbd-dev@...ts.linbit.com,
        Lars Ellenberg <lars.ellenberg@...bit.com>,
        Philipp Reisner <philipp.reisner@...bit.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 06/13] DRBD-receiver: Improve a size determination in
 receive_sizes()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 10 Sep 2016 21:45:13 +0200

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.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/block/drbd/drbd_receiver.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 7666212..64bc316 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -4085,7 +4085,8 @@ static int receive_sizes(struct drbd_connection *connection, struct packet_info
 		if (my_usize != p_usize) {
 			struct disk_conf *old_disk_conf, *new_disk_conf;
 
-			new_disk_conf = kzalloc(sizeof(struct disk_conf), GFP_KERNEL);
+			new_disk_conf = kzalloc(sizeof(*new_disk_conf),
+						GFP_KERNEL);
 			if (!new_disk_conf) {
 				drbd_err(device, "Allocation of new disk_conf failed\n");
 				put_ldev(device);
-- 
2.10.0