2 files changed, 3 insertions, 2 deletions

diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 00660cc502c5..38901665c770 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -162,8 +162,6 @@ static int pci_bus_alloc_from_region(struct pci_bus *bus, struct resource *res,
 
                 avail = *r;
                 pci_clip_resource_to_region(bus, &avail, region);
-                if (!resource_size(&avail))
-                        continue;
 
                 /*
                  * "min" is typically PCIBIOS_MIN_IO or PCIBIOS_MIN_MEM to
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6b05f6134b68..fdbc294821e6 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1192,6 +1192,9 @@ 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);