ksmbd: Use struct_size() to improve get_file_alternate_info()

Use struct_size() to calculate the output buffer length. Signed-off-by: Thorsten Blum <[email protected]> Signed-off-by: Namjae Jeon <[email protected]>
namjaejeon · Oct 13, 2024 · 9ae66f9 · 9ae66f9
1 parent b6d0945
commit 9ae66f9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/smb2pdu.c b/smb2pdu.c
@@ -5141,7 +5141,7 @@ static void get_file_alternate_info(struct ksmbd_work *work,
 	spin_unlock(&dentry->d_lock);
 	file_info->FileNameLength = cpu_to_le32(conv_len);
 	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_alt_name_info) + conv_len);
+		cpu_to_le32(struct_size(file_info, FileName, conv_len));
 }
 
 static int get_file_stream_info(struct ksmbd_work *work,