diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 2879efc..cb499c5 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -713,14 +713,6 @@
 
 int pcibios_alloc_irq(struct pci_dev *dev)
 {
-	/*
-	 * If the PCI device was already claimed by core code and has
-	 * MSI enabled, probing of the pcibios IRQ will overwrite
-	 * dev->irq.  So bail out if MSI is already enabled.
-	 */
-	if (pci_dev_msi_enabled(dev))
-		return -EBUSY;
-
 	return pcibios_enable_irq(dev);
 }