From 2a61c8eaf1879db99286c3f5fe5e78086c7edb85 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 29 Jul 2015 12:16:48 +0300 Subject: [PATCH] x86/pci/intel_mid_pci: Propagate actual return code mp_map_gsi_to_irq() returns different codes if it fails. intel_mid_pci_irq_enable() hides this under -EBUSY. Return the actual failure code. Signed-off-by: Andy Shevchenko Cc: Bjorn Helgaas Link: http://lkml.kernel.org/r/1438161409-4671-3-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner --- arch/x86/pci/intel_mid_pci.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 7553921c146c..3361f0aab61c 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -213,6 +213,7 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) { struct irq_alloc_info info; int polarity; + int ret; if (dev->irq_managed && dev->irq > 0) return 0; @@ -244,8 +245,9 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) * MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to * IOAPIC RTE entries, so we just enable RTE for the device. */ - if (mp_map_gsi_to_irq(dev->irq, IOAPIC_MAP_ALLOC, &info) < 0) - return -EBUSY; + ret = mp_map_gsi_to_irq(dev->irq, IOAPIC_MAP_ALLOC, &info); + if (ret < 0) + return ret; dev->irq_managed = 1;