We should call tegra_msi_free() to free the msi bit if
irq_create_mapping() fails. And we need to dispose the irq mapping
during irq teardown.
Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxxx>
---
drivers/pci/host/pci-tegra.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 083cf37..695e7b9 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -1203,8 +1203,10 @@ static int tegra_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
return hwirq;
irq = irq_create_mapping(msi->domain, hwirq);
- if (!irq)
+ if (!irq) {
+ tegra_msi_free(msi, hwirq);
return -EINVAL;
+ }
irq_set_msi_desc(irq, desc);
@@ -1223,6 +1225,7 @@ static void tegra_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
struct tegra_msi *msi = to_tegra_msi(chip);
struct irq_data *d = irq_get_irq_data(irq);
+ irq_dispose_mapping(irq);
tegra_msi_free(msi, d->hwirq);
}
--
2.0.1
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