linux-kernel - [PATCH 2/3] kobject: Improve a size determination in kobject_uevent

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Date: Tue, 19 Dec 2023 16:34:19 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: kernel-janitors@...r.kernel.org, Andrew Morton
 <akpm@...ux-foundation.org>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, cocci@...ia.fr
Subject: [PATCH 2/3] kobject: Improve a size determination in
 kobject_uevent_env()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 19 Dec 2023 16:00:22 +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.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 lib/kobject_uevent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 811e579ed89d..a9b1bc02f65c 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -521,7 +521,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 	}

 	/* environment buffer */
-	env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
+	env = kzalloc(sizeof(*env), GFP_KERNEL);
 	if (!env)
 		return -ENOMEM;

--
2.43.0