Bluetooth: Don't use cmd_timer to timeout HCI reset command

No command should be send before Command Complete event for HCI
reset is received. This fix regression introduced by commit
6bd32326cda(Bluetooth: Use proper timer for hci command timout)
for chips whose reset command takes longer to complete (e.g. CSR)
resulting in next command being send before HCI reset completed.

Signed-off-by: Szymon Janc <szymon@janc.net.pl>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index fca62dcd7f1bf2efae0b21edc7ce35cf192503ab..56943add45cc44707167f4877e27fe5630b00c95 100644 (file)
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1209,7 +1209,6 @@ static void hci_cmd_timer(unsigned long arg)
 
        BT_ERR("%s command tx timeout", hdev->name);
        atomic_set(&hdev->cmd_cnt, 1);
-       clear_bit(HCI_RESET, &hdev->flags);
        tasklet_schedule(&hdev->cmd_task);
 }
 
@@ -2408,7 +2407,10 @@ static void hci_cmd_task(unsigned long arg)
                if (hdev->sent_cmd) {
                        atomic_dec(&hdev->cmd_cnt);
                        hci_send_frame(skb);
-                       mod_timer(&hdev->cmd_timer,
+                       if (test_bit(HCI_RESET, &hdev->flags))
+                               del_timer(&hdev->cmd_timer);
+                       else
+                               mod_timer(&hdev->cmd_timer,
                                  jiffies + msecs_to_jiffies(HCI_CMD_TIMEOUT));
                } else {
                        skb_queue_head(&hdev->cmd_q, skb);