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path: root/drivers/xen/acpi.c
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Diffstat (limited to 'drivers/xen/acpi.c')
-rw-r--r--drivers/xen/acpi.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c
index d2ee605c5ca1..eab28cfe9939 100644
--- a/drivers/xen/acpi.c
+++ b/drivers/xen/acpi.c
@@ -89,11 +89,11 @@ int xen_acpi_get_gsi_info(struct pci_dev *dev,
int *trigger_out,
int *polarity_out)
{
- int gsi;
+ u32 gsi;
u8 pin;
struct acpi_prt_entry *entry;
int trigger = ACPI_LEVEL_SENSITIVE;
- int polarity = acpi_irq_model == ACPI_IRQ_MODEL_GIC ?
+ int ret, polarity = acpi_irq_model == ACPI_IRQ_MODEL_GIC ?
ACPI_ACTIVE_HIGH : ACPI_ACTIVE_LOW;
if (!dev || !gsi_out || !trigger_out || !polarity_out)
@@ -105,17 +105,18 @@ int xen_acpi_get_gsi_info(struct pci_dev *dev,
entry = acpi_pci_irq_lookup(dev, pin);
if (entry) {
+ ret = 0;
if (entry->link)
- gsi = acpi_pci_link_allocate_irq(entry->link,
+ ret = acpi_pci_link_allocate_irq(entry->link,
entry->index,
&trigger, &polarity,
- NULL);
+ NULL, &gsi);
else
gsi = entry->index;
} else
- gsi = -1;
+ ret = -ENODEV;
- if (gsi < 0)
+ if (ret < 0)
return -EINVAL;
*gsi_out = gsi;