linux-kernel - [PATCH] ceph: Use struct

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Message-ID: <20240912153924.78724-1-thorsten.blum@toblux.com>
Date: Thu, 12 Sep 2024 17:39:24 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: xiubli@...hat.com,
	idryomov@...il.com
Cc: ceph-devel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Thorsten Blum <thorsten.blum@...lux.com>
Subject: [PATCH] ceph: Use struct_size() helper

Use struct_size() to calculate the number of bytes to be allocated.

Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
---
 fs/ceph/addr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index c4744a02db75..ab494f250d80 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -2133,7 +2133,7 @@ static int __ceph_pool_perm_get(struct ceph_inode_info *ci,
 	}
 
 	pool_ns_len = pool_ns ? pool_ns->len : 0;
-	perm = kmalloc(sizeof(*perm) + pool_ns_len + 1, GFP_NOFS);
+	perm = kmalloc(struct_size(perm, pool_ns, pool_ns_len + 1), GFP_NOFS);
 	if (!perm) {
 		err = -ENOMEM;
 		goto out_unlock;
-- 
2.46.0