mwifiex: cancel cmd timer and free curr_cmd in shutdown process

commit 084c7189acb3f969c855536166042e27f5dd703f upstream.

curr_cmd points to the command that is in processing or waiting
for its command response from firmware. If the function shutdown
happens to occur at this time we should cancel the cmd timer and
put the command back to free queue.

Tested-by: Marco Cesarano <marco@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 54bb4839b57c7cc8f2e1dc4c11ab7f97896bbd9f..f9d9aedfd54b14893834f0b8114ac38ac965b073 100644 (file)
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -584,6 +584,14 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
                return ret;
        }
 
+       /* cancel current command */
+       if (adapter->curr_cmd) {
+               dev_warn(adapter->dev, "curr_cmd is still in processing\n");
+               del_timer(&adapter->cmd_timer);
+               mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
+               adapter->curr_cmd = NULL;
+       }
+
        /* shut down mwifiex */
        dev_dbg(adapter->dev, "info: shutdown mwifiex...\n");