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Subject[PATCH v3 2/4] media: rkisp1: Fix IRQ handler return values
The IRQ handler rkisp1_isr() calls sub-handlers, all of which returns an
irqreturn_t value, but rkisp1_isr() ignores those values and always
returns IRQ_HANDLED.

Fix this by collecting the return values, and returning IRQ_HANDLED or
IRQ_NONE as appropriate.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Adam Ford <aford173@gmail.com> #imx8mp-beacon
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 4c4514e20673..22b2ae0e89c4 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -442,17 +442,25 @@ static int rkisp1_entities_register(struct rkisp1_device *rkisp1)

static irqreturn_t rkisp1_isr(int irq, void *ctx)
{
+ irqreturn_t ret = IRQ_NONE;
+
/*
* Call rkisp1_capture_isr() first to handle the frame that
* potentially completed using the current frame_sequence number before
* it is potentially incremented by rkisp1_isp_isr() in the vertical
* sync.
*/
- rkisp1_capture_isr(irq, ctx);
- rkisp1_isp_isr(irq, ctx);
- rkisp1_csi_isr(irq, ctx);

- return IRQ_HANDLED;
+ if (rkisp1_capture_isr(irq, ctx) == IRQ_HANDLED)
+ ret = IRQ_HANDLED;
+
+ if (rkisp1_isp_isr(irq, ctx) == IRQ_HANDLED)
+ ret = IRQ_HANDLED;
+
+ if (rkisp1_csi_isr(irq, ctx) == IRQ_HANDLED)
+ ret = IRQ_HANDLED;
+
+ return ret;
}

static const char * const px30_isp_clks[] = {
--
2.34.1

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