From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 5 Dec 2014 11:36:01 +0000 (+0200)
Subject: Bluetooth: Store parameter length with pending mgmt commands
X-Git-Tag: v3.19-rc1~118^2~28^2~5^2~19
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=323b0b885b5586a39a288d8f10c3a6c7ba901282;p=karo-tx-linux.git

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>
---

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);