1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 4aea563bda60..9c69b6966e79 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -940,14 +940,13 @@ int pci_enable_msi(struct pci_dev* dev)
         if (!pos)
                 return -EINVAL;
 
-        pci_read_config_word(dev, msi_control_reg(pos), &control);
-        if (control & PCI_MSI_FLAGS_ENABLE)
-                return 0;                       /* Already in MSI mode */
-
         if (!msi_lookup_vector(dev, PCI_CAP_ID_MSI)) {
                 /* Lookup Sucess */
                 unsigned long flags;
 
+                pci_read_config_word(dev, msi_control_reg(pos), &control);
+                if (control & PCI_MSI_FLAGS_ENABLE)
+                        return 0;       /* Already in MSI mode */
                 spin_lock_irqsave(&msi_lock, flags);
                 if (!vector_irq[dev->irq]) {
                         msi_desc[dev->irq]->msi_attrib.state = 0;