| Message ID | 1468329881-5894-2-git-send-email-lars@metafoo.de (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | d33648478501407267557b1bf6897169625f4178 |
| Headers | show |
Acked-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> On Tue, Jul 12, 2016 at 3:24 PM, Lars-Peter Clausen <lars@metafoo.de> wrote: > Return IRQ_NONE from the interrupt handler if the handler is running, but > no interrupt was detected. This allows the system to recover in case of an > interrupt storm due to an invalid interrupt configuration or faulty > hardware. > > Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> > --- > drivers/spi/spi-xilinx.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c > index 334f423..f8280f3 100644 > --- a/drivers/spi/spi-xilinx.c > +++ b/drivers/spi/spi-xilinx.c > @@ -341,9 +341,10 @@ static irqreturn_t xilinx_spi_irq(int irq, void *dev_id) > > if (ipif_isr & XSPI_INTR_TX_EMPTY) { /* Transmission completed */ > complete(&xspi->done); > + return IRQ_HANDLED; > } > > - return IRQ_HANDLED; > + return IRQ_NONE; > } > > static int xilinx_spi_find_buffer_size(struct xilinx_spi *xspi) > -- > 2.1.4 >
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 334f423..f8280f3 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -341,9 +341,10 @@ static irqreturn_t xilinx_spi_irq(int irq, void *dev_id) if (ipif_isr & XSPI_INTR_TX_EMPTY) { /* Transmission completed */ complete(&xspi->done); + return IRQ_HANDLED; } - return IRQ_HANDLED; + return IRQ_NONE; } static int xilinx_spi_find_buffer_size(struct xilinx_spi *xspi)
Return IRQ_NONE from the interrupt handler if the handler is running, but no interrupt was detected. This allows the system to recover in case of an interrupt storm due to an invalid interrupt configuration or faulty hardware. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> --- drivers/spi/spi-xilinx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)