Bluetooth: Store parameter length with pending mgmt commands

As preparation for making generic cmd_complete responses possible we'll
need to track the parameter length in addition to just a pointer to
them. This patch adds the necessary variable to the pending_cmd struct.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 98537b07b720..56c7838c0a41 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -135,6 +135,7 @@ struct pending_cmd {
         u16 opcode;
         int index;
         void *param;
+        size_t param_len;
         struct sock *sk;
         void *user_data;
         void (*cmd_complete)(struct pending_cmd *cmd, u8 status);
@@ -1205,14 +1206,13 @@ static struct pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
         cmd->opcode = opcode;
         cmd->index = hdev->id;
 
-        cmd->param = kmalloc(len, GFP_KERNEL);
+        cmd->param = kmemdup(data, len, GFP_KERNEL);
         if (!cmd->param) {
                 kfree(cmd);
                 return NULL;
         }
 
-        if (data)
-                memcpy(cmd->param, data, len);
+        cmd->param_len = len;
 
         cmd->sk = sk;
         sock_hold(sk);