On Mon, Oct 24, 2016 at 07:51:29PM +0530, Amitkumar Karwar wrote:
> This variable is guarded by spinlock at all other places. This patch
> takes care of missing spinlock usage in mwifiex_shutdown_drv().
>
> Signed-off-by: Amitkumar Karwar <[email protected]>
> ---
> drivers/net/wireless/marvell/mwifiex/init.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/net/wireless/marvell/mwifiex/init.c
> b/drivers/net/wireless/marvell/mwifiex/init.c
> index 82839d9..8e5e424 100644
> --- a/drivers/net/wireless/marvell/mwifiex/init.c
> +++ b/drivers/net/wireless/marvell/mwifiex/init.c
> @@ -670,11 +670,14 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
>
> adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING;
> /* wait for mwifiex_process to complete */
> + spin_lock_irqsave(&adapter->main_proc_lock, flags);
> if (adapter->mwifiex_processing) {
> + spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
> mwifiex_dbg(adapter, WARN,
> "main process is still running\n");
> return ret;
> }
> + spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
What happens if adapter->mwifiex_processing will become true here?
>
> /* cancel current command */
> if (adapter->curr_cmd) {
> --
> 1.9.1
>
--
Dmitry
