The initial state of mask register of MSI is unmasked.
We setup it masked before calling arch_setup_msi_irqs().
In case if arch_setup_msi_irq() failed, it is better to restore
the state of the mask register.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@xxxxxxxxxxxxxx>
---
drivers/pci/msi.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index e784526..339d94a 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -409,6 +409,7 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
/* Configure MSI capability structure */
ret = arch_setup_msi_irqs(dev, nvec, PCI_CAP_ID_MSI);
if (ret) {
+ msi_mask_irq(entry, mask, ~mask);
msi_free_irqs(dev);
return ret;
}
--
1.6.3.3
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