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[media] media: rc: nuvoton: replace usage of spin_lock_irqsave in ISR
Kernel takes care that interrupts from one source are serialized. So there's no need to use spinlock_irq_save. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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73d4576d8f
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1 changed files with 4 additions and 5 deletions
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@ -840,11 +840,10 @@ static irqreturn_t nvt_cir_isr(int irq, void *data)
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{
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struct nvt_dev *nvt = data;
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u8 status, iren;
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unsigned long flags;
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nvt_dbg_verbose("%s firing", __func__);
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spin_lock_irqsave(&nvt->lock, flags);
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spin_lock(&nvt->lock);
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/*
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* Get IR Status register contents. Write 1 to ack/clear
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@ -866,7 +865,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data)
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* logical device is being disabled.
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*/
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if (status == 0xff && iren == 0xff) {
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spin_unlock_irqrestore(&nvt->lock, flags);
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spin_unlock(&nvt->lock);
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nvt_dbg_verbose("Spurious interrupt detected");
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return IRQ_HANDLED;
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}
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@ -875,7 +874,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data)
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* status bit whether the related interrupt source is enabled
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*/
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if (!(status & iren)) {
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spin_unlock_irqrestore(&nvt->lock, flags);
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spin_unlock(&nvt->lock);
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nvt_dbg_verbose("%s exiting, IRSTS 0x0", __func__);
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return IRQ_NONE;
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}
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@ -923,7 +922,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data)
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}
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}
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spin_unlock_irqrestore(&nvt->lock, flags);
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spin_unlock(&nvt->lock);
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nvt_dbg_verbose("%s done", __func__);
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return IRQ_HANDLED;
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