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@@ -538,6 +538,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id)
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struct uart_omap_port *up = dev_id;
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unsigned int iir, lsr;
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unsigned int type;
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+ irqreturn_t ret = IRQ_NONE;
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int max_count = 256;
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spin_lock(&up->port.lock);
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@@ -548,6 +549,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id)
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if (iir & UART_IIR_NO_INT)
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break;
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+ ret = IRQ_HANDLED;
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lsr = serial_in(up, UART_LSR);
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/* extract IRQ type from IIR register */
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@@ -586,7 +588,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id)
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pm_runtime_put_autosuspend(up->dev);
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up->port_activity = jiffies;
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- return IRQ_HANDLED;
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+ return ret;
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}
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static unsigned int serial_omap_tx_empty(struct uart_port *port)
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