1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 1febe90831b4..fdbc294821e6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1181,6 +1181,8 @@ EXPORT_SYMBOL_GPL(pci_load_and_free_saved_state);
 static int do_pci_enable_device(struct pci_dev *dev, int bars)
 {
         int err;
+        u16 cmd;
+        u8 pin;
 
         err = pci_set_power_state(dev, PCI_D0);
         if (err < 0 && err != -EIO)
@@ -1190,6 +1192,17 @@ static int do_pci_enable_device(struct pci_dev *dev, int bars)
                 return err;
         pci_fixup_device(pci_fixup_enable, dev);
 
+        if (dev->msi_enabled || dev->msix_enabled)
+                return 0;
+
+        pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+        if (pin) {
+                pci_read_config_word(dev, PCI_COMMAND, &cmd);
+                if (cmd & PCI_COMMAND_INTX_DISABLE)
+                        pci_write_config_word(dev, PCI_COMMAND,
+                                              cmd & ~PCI_COMMAND_INTX_DISABLE);
+        }
+
         return 0;
 }