xen/pci: Bubble up error and fix description.

The function is never called under PV guests, and only shows up when MSI (or MSI-X) cannot be allocated. Convert the message to include the error value. Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Reviewed-by: Juergen Gross <[email protected]> Signed-off-by: Juergen Gross <[email protected]>
jimmycarry · Dec 8, 2016 · 577f79e · 577f79e
1 parent 2466d4b
commit 577f79e
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
@@ -264,8 +264,8 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
 	return 0;
 
 error:
-	dev_err(&dev->dev,
-		"Xen PCI frontend has not registered MSI/MSI-X support!\n");
+	dev_err(&dev->dev, "Failed to create MSI%s! ret=%d!\n",
+		type == PCI_CAP_ID_MSI ? "" : "-X", irq);
 	return irq;
 }