From d2f5a7311bcaed681a41cb3419b8fe92a7b68bf5 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 23 Aug 2016 16:09:40 +0300 Subject: dmaengine: hsu: refactor hsu_dma_do_irq() to return int Since we have nice macro IRQ_RETVAL() we would use it to convert a flag of handled interrupt from int to irqreturn_t. The rationale of doing this is: a) hence we implicitly mark hsu_dma_do_irq() as an auxiliary function that can't be used as interrupt handler directly, and b) to be in align with serial driver which is using serial8250_handle_irq() that returns plain int by design. Signed-off-by: Andy Shevchenko Signed-off-by: Greg Kroah-Hartman --- drivers/dma/hsu/hsu.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers/dma/hsu/hsu.c') diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c index c5f21efd6090..29d04ca71d52 100644 --- a/drivers/dma/hsu/hsu.c +++ b/drivers/dma/hsu/hsu.c @@ -200,10 +200,9 @@ EXPORT_SYMBOL_GPL(hsu_dma_get_status); * is not a normal timeout interrupt, ie. hsu_dma_get_status() returned 0. * * Return: - * IRQ_NONE for invalid channel number, IRQ_HANDLED otherwise. + * 0 for invalid channel number, 1 otherwise. */ -irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, - u32 status) +int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status) { struct hsu_dma_chan *hsuc; struct hsu_dma_desc *desc; @@ -211,7 +210,7 @@ irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, /* Sanity check */ if (nr >= chip->hsu->nr_channels) - return IRQ_NONE; + return 0; hsuc = &chip->hsu->chan[nr]; @@ -230,7 +229,7 @@ irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, } spin_unlock_irqrestore(&hsuc->vchan.lock, flags); - return IRQ_HANDLED; + return 1; } EXPORT_SYMBOL_GPL(hsu_dma_do_irq); -- cgit v1.2.3