fs/afs: use struct_size() in kzalloc()

As Gustavo said in other patches doing the same replace, we can now
use the new struct_size() helper to avoid leaving these open-coded and
prone to type mistake.

Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/afs/write.c b/fs/afs/write.c
index 8bcab95f1127..9cea9c40a4ef 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -48,8 +48,7 @@ static int afs_fill_page(struct afs_vnode *vnode, struct key *key,
                 return 0;
         }
 
-        req = kzalloc(sizeof(struct afs_read) + sizeof(struct page *),
-                      GFP_KERNEL);
+        req = kzalloc(struct_size(req, array, 1), GFP_KERNEL);
         if (!req)
                 return -ENOMEM;