Commit b015dbc0 authored by Amitkumar Karwar's avatar Amitkumar Karwar Committed by John W. Linville
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mwifiex: fix crash during simultaneous scan and connect



If 'iw connect' command is fired when driver is already busy in
serving 'iw scan' command, ssid specific scan operation for connect
is skipped. In this case cmd wait queue handler gets called with no
command in queue (i.e. adapter->cmd_queued = NULL).

This patch adds a NULL check in mwifiex_wait_queue_complete()
routine to fix crash observed during simultaneous scan and assoc
operations.
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 09009512
......@@ -55,9 +55,14 @@ int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
{
bool cancel_flag = false;
int status = adapter->cmd_wait_q.status;
struct cmd_ctrl_node *cmd_queued = adapter->cmd_queued;
struct cmd_ctrl_node *cmd_queued;
if (!adapter->cmd_queued)
return 0;
cmd_queued = adapter->cmd_queued;
adapter->cmd_queued = NULL;
dev_dbg(adapter->dev, "cmd pending\n");
atomic_inc(&adapter->cmd_pending);
......
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