Merge tag 'irq-msi-2026-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull MSI irq fix from Ingo Molnar:

 - Revert a change that added a bad iounmap(NULL) call
   to the MSI IRQ support code (Yuanhe Shu)

* tag 'irq-msi-2026-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "PCI/MSI: Unmap MSI-X region on error"

Author: torvalds

drivers/pci/msi/msi.c

@@ -749,7 +749,7 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries,
 
 	ret = msix_setup_interrupts(dev, entries, nvec, affd);
 	if (ret)
-		goto out_unmap;
+		goto out_disable;
 
 	/* Disable INTX */
 	pci_intx_for_msi(dev, 0);
@@ -770,8 +770,6 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries,
 	pcibios_free_irq(dev);
 	return 0;
 
-out_unmap:
-	iounmap(dev->msix_base);
 out_disable:
 	dev->msix_enabled = 0;
 	pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_MASKALL | PCI_MSIX_FLAGS_ENABLE, 0);