diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-08-23 16:09:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-02 15:05:48 +0200 |
| commit | d2f5a7311bcaed681a41cb3419b8fe92a7b68bf5 (patch) | |
| tree | 9a7669cb11f6314817fced673fd63d26d7bc5153 /drivers/dma/hsu/hsu.c | |
| parent | 46e36683f433528bfb7e5754ca5c5c86c204c40a (diff) | |
| download | linux-d2f5a7311bcaed681a41cb3419b8fe92a7b68bf5.tar.bz2 | |
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 <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma/hsu/hsu.c')
| -rw-r--r-- | drivers/dma/hsu/hsu.c | 9 |
1 files changed, 4 insertions, 5 deletions
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); |