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[PATCH 2/5] mwifiex: use spinlock for 'mwifiex_processing' in shutdown_drv

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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 <akarwar@xxxxxxxxxxx>
---
 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);
 
 	/* cancel current command */
 	if (adapter->curr_cmd) {
-- 
1.9.1




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