[PATCH 13/16] media: rc: nuvoton-cir: add locking to calls of nvt_enable_wake

[Heiner Kallweit]

Add locking to nvt_enable_wake calls.

Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
---
 drivers/media/rc/nuvoton-cir.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index 252804d..c3294fb 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -1173,16 +1173,16 @@ static int nvt_suspend(struct pnp_dev *pdev, 
pm_message_t state)
 
        nvt_dbg("%s called", __func__);
 
-       /* zero out misc state tracking */
-       spin_lock_irqsave(&nvt->nvt_lock, flags);
-       nvt->study_state = ST_STUDY_NONE;
-       nvt->wake_state = ST_WAKE_NONE;
-       spin_unlock_irqrestore(&nvt->nvt_lock, flags);
-
        spin_lock_irqsave(&nvt->tx.lock, flags);
        nvt->tx.tx_state = ST_TX_NONE;
        spin_unlock_irqrestore(&nvt->tx.lock, flags);
 
+       spin_lock_irqsave(&nvt->nvt_lock, flags);
+
+       /* zero out misc state tracking */
+       nvt->study_state = ST_STUDY_NONE;
+       nvt->wake_state = ST_WAKE_NONE;
+
        /* disable all CIR interrupts */
        nvt_cir_reg_write(nvt, 0, CIR_IREN);
 
@@ -1192,6 +1192,8 @@ static int nvt_suspend(struct pnp_dev *pdev, pm_message_t 
state)
        /* make sure wake is enabled */
        nvt_enable_wake(nvt);
 
+       spin_unlock_irqrestore(&nvt->nvt_lock, flags);
+
        return 0;
 }
 
@@ -1210,7 +1212,11 @@ static int nvt_resume(struct pnp_dev *pdev)
 static void nvt_shutdown(struct pnp_dev *pdev)
 {
        struct nvt_dev *nvt = pnp_get_drvdata(pdev);
+       unsigned long flags;
+
+       spin_lock_irqsave(&nvt->nvt_lock, flags);
        nvt_enable_wake(nvt);
+       spin_unlock_irqrestore(&nvt->nvt_lock, flags);
 }
 
 static const struct pnp_device_id nvt_ids[] = {
-- 
2.6.4


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