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tty: serial: qcom_geni_serial: Return IRQ_NONE for spurious interrupts

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Currently the driver returns IRQ_HANDLED when spurious interrupts happen.
This is misleading. Fix the behavior by returning IRQ_NONE for spurious
interrupts.

Signed-off-by: Karthikeyan Ramasubramanian <kramasub@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Karthikeyan Ramasubramanian 2018-05-03 14:14:39 -06:00 committed by Greg Kroah-Hartman
parent 69736b57df
commit ec91df8d3f
1 changed files with 1 additions and 1 deletions
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drivers/tty/serial/qcom_geni_serial.c
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@ -633,7 +633,7 @@ static irqreturn_t qcom_geni_serial_isr(int isr, void *dev)
struct qcom_geni_serial_port *port = to_dev_port(uport, uport); struct qcom_geni_serial_port *port = to_dev_port(uport, uport);
if (uport->suspended) if (uport->suspended)
return IRQ_HANDLED; return IRQ_NONE;
spin_lock_irqsave(&uport->lock, flags); spin_lock_irqsave(&uport->lock, flags);
m_irq_status = readl_relaxed(uport->membase + SE_GENI_M_IRQ_STATUS); m_irq_status = readl_relaxed(uport->membase + SE_GENI_M_IRQ_STATUS);