nvt_enable_cir calls nvt_enable_logical_dev (that may sleep)
while holding a spinlock.
This patch fixes this and moves the content of nvt_enable_cir
to nvt_open as this is the only caller.
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
---
drivers/media/rc/nuvoton-cir.c | 33 +++++++++++++++------------------
1 file changed, 15 insertions(+), 18 deletions(-)
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index b6acc84..971858a 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -942,23 +942,6 @@ static irqreturn_t nvt_cir_wake_isr(int irq, void *data)
return IRQ_HANDLED;
}
-static void nvt_enable_cir(struct nvt_dev *nvt)
-{
- /* set function enable flags */
- nvt_cir_reg_write(nvt, CIR_IRCON_TXEN | CIR_IRCON_RXEN |
- CIR_IRCON_RXINV | CIR_IRCON_SAMPLE_PERIOD_SEL,
- CIR_IRCON);
-
- /* enable the CIR logical device */
- nvt_enable_logical_dev(nvt, LOGICAL_DEV_CIR);
-
- /* clear all pending interrupts */
- nvt_cir_reg_write(nvt, 0xff, CIR_IRSTS);
-
- /* enable interrupts */
- nvt_set_cir_iren(nvt);
-}
-
static void nvt_disable_cir(struct nvt_dev *nvt)
{
/* disable CIR interrupts */
@@ -984,9 +967,23 @@ static int nvt_open(struct rc_dev *dev)
unsigned long flags;
spin_lock_irqsave(&nvt->nvt_lock, flags);
- nvt_enable_cir(nvt);
+
+ /* set function enable flags */
+ nvt_cir_reg_write(nvt, CIR_IRCON_TXEN | CIR_IRCON_RXEN |
+ CIR_IRCON_RXINV | CIR_IRCON_SAMPLE_PERIOD_SEL,
+ CIR_IRCON);
+
+ /* clear all pending interrupts */
+ nvt_cir_reg_write(nvt, 0xff, CIR_IRSTS);
+
+ /* enable interrupts */
+ nvt_set_cir_iren(nvt);
+
spin_unlock_irqrestore(&nvt->nvt_lock, flags);
+ /* enable the CIR logical device */
+ nvt_enable_logical_dev(nvt, LOGICAL_DEV_CIR);
+
return 0;
}
--
2.7.0
--
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