diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2016-10-25 22:23:52 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-18 22:08:15 +0300 |
| commit | c044170fcfca3783f7dd8eb69ff8b06d66fad5d8 (patch) | |
| tree | 66c5421c5e9142a365da58ec1090915ae0846255 /drivers/media/rc/nuvoton-cir.c | |
| parent | 73d4576d8ff4e418175c9b6e3059561ee0e46210 (diff) | |
| download | linux-c044170fcfca3783f7dd8eb69ff8b06d66fad5d8.tar.xz | |
[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>
Diffstat (limited to 'drivers/media/rc/nuvoton-cir.c')
| -rw-r--r-- | drivers/media/rc/nuvoton-cir.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c index c335de4ca4b5..4b78c891eb77 100644 --- a/drivers/media/rc/nuvoton-cir.c +++ b/drivers/media/rc/nuvoton-cir.c @@ -840,11 +840,10 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) { struct nvt_dev *nvt = data; u8 status, iren; - unsigned long flags; nvt_dbg_verbose("%s firing", __func__); - spin_lock_irqsave(&nvt->lock, flags); + spin_lock(&nvt->lock); /* * Get IR Status register contents. Write 1 to ack/clear @@ -866,7 +865,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) * logical device is being disabled. */ if (status == 0xff && iren == 0xff) { - spin_unlock_irqrestore(&nvt->lock, flags); + spin_unlock(&nvt->lock); nvt_dbg_verbose("Spurious interrupt detected"); return IRQ_HANDLED; } @@ -875,7 +874,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) * status bit whether the related interrupt source is enabled */ if (!(status & iren)) { - spin_unlock_irqrestore(&nvt->lock, flags); + spin_unlock(&nvt->lock); nvt_dbg_verbose("%s exiting, IRSTS 0x0", __func__); return IRQ_NONE; } @@ -923,7 +922,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) } } - spin_unlock_irqrestore(&nvt->lock, flags); + spin_unlock(&nvt->lock); nvt_dbg_verbose("%s done", __func__); return IRQ_HANDLED; |