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-rw-r--r--drivers/serial/8250_acpi.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/serial/8250_acpi.c b/drivers/serial/8250_acpi.c
index 6b9ead288517..a802bdce6e5d 100644
--- a/drivers/serial/8250_acpi.c
+++ b/drivers/serial/8250_acpi.c
@@ -47,18 +47,30 @@ static acpi_status acpi_serial_port(struct uart_port *port,
static acpi_status acpi_serial_ext_irq(struct uart_port *port,
struct acpi_resource_ext_irq *ext_irq)
{
- if (ext_irq->number_of_interrupts > 0)
- port->irq = acpi_register_gsi(ext_irq->interrupts[0],
+ int rc;
+
+ if (ext_irq->number_of_interrupts > 0) {
+ rc = acpi_register_gsi(ext_irq->interrupts[0],
ext_irq->edge_level, ext_irq->active_high_low);
+ if (rc < 0)
+ return AE_ERROR;
+ port->irq = rc;
+ }
return AE_OK;
}
static acpi_status acpi_serial_irq(struct uart_port *port,
struct acpi_resource_irq *irq)
{
- if (irq->number_of_interrupts > 0)
- port->irq = acpi_register_gsi(irq->interrupts[0],
+ int rc;
+
+ if (irq->number_of_interrupts > 0) {
+ rc = acpi_register_gsi(irq->interrupts[0],
irq->edge_level, irq->active_high_low);
+ if (rc < 0)
+ return AE_ERROR;
+ port->irq = rc;
+ }
return AE_OK;
}