From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Fri, 27 Jan 2017 15:14:53 +0000 (+0100)
Subject: PCI/MSI: Return failure when msix_setup_entries() fails
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=3adfb572f2978a980b250a9e1a56f84f3a031001;p=openwrt%2Fstaging%2Fblogic.git

PCI/MSI: Return failure when msix_setup_entries() fails

If alloc_msi_entry() fails, we free resources and set ret = -ENOMEM.

However, msix_setup_entries() returns 0 unconditionally.  Return the error
code instead.

Fixes: e75eafb9b039 ("genirq/msi: Switch to new irq spreading infrastructure")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index b6785c8be44d..0f77b38f03dd 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -731,7 +731,7 @@ static int msix_setup_entries(struct pci_dev *dev, void __iomem *base,
 	ret = 0;
 out:
 	kfree(masks);
-	return 0;
+	return ret;
 }
 
 static void msix_program_entries(struct pci_dev *dev,