No any callers do care whether arch_setup_msi_irqs returns
-ENOSPC or other error numbers. That means they treat the
negative numbers in the same way. So there shouldn't make any
difference to directly return -ENOSPC if finding it's non-zero.

Signed-off-by: Shawn Lin <shawn....@rock-chips.com>
---

 drivers/pci/msi.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a080f44..4a40b72 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -108,7 +108,7 @@ int __weak arch_setup_msi_irqs(struct pci_dev *dev, int 
nvec, int type)
 {
        struct msi_controller *chip = dev->bus->msi;
        struct msi_desc *entry;
-       int ret;
+       int ret = 0;
 
        if (chip && chip->setup_irqs)
                return chip->setup_irqs(chip, dev, nvec, type);
@@ -119,13 +119,10 @@ int __weak arch_setup_msi_irqs(struct pci_dev *dev, int 
nvec, int type)
        if (type == PCI_CAP_ID_MSI && nvec > 1)
                return 1;
 
-       for_each_pci_msi_entry(entry, dev) {
+       for_each_pci_msi_entry(entry, dev)
                ret = arch_setup_msi_irq(dev, entry);
-               if (ret < 0)
-                       return ret;
-               if (ret > 0)
+               if (ret)
                        return -ENOSPC;
-       }
 
        return 0;
 }
-- 
2.3.7


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