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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-04 14:01:02 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-04 14:01:02 +0100
commitc09c9dd2e9c732658c744a802101d5c34fedde22 (patch)
tree89f930ede811e66e7a70761aaca079d779fed38a /arch/x86/pci
parent727ae8be30b428082d3519817f4fb98b712d457d (diff)
parent06bf403de344a8a0811ebd24992d2a08022c5225 (diff)
downloadblackbird-op-linux-c09c9dd2e9c732658c744a802101d5c34fedde22.tar.gz
blackbird-op-linux-c09c9dd2e9c732658c744a802101d5c34fedde22.zip
Merge branches 'acpi-pci' and 'pm-pci'
* acpi-pci: x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69a245 * pm-pci: PCI / PM: Tune down retryable runtime suspend error messages
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/common.c8
-rw-r--r--arch/x86/pci/legacy.c2
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index dc78a4a9a466..eccd4d99e6a4 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -675,6 +675,14 @@ int pcibios_add_device(struct pci_dev *dev)
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);
}
diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c
index 5b662c0faf8c..ea6f3802c17b 100644
--- a/arch/x86/pci/legacy.c
+++ b/arch/x86/pci/legacy.c
@@ -54,7 +54,7 @@ void pcibios_scan_specific_bus(int busn)
}
EXPORT_SYMBOL_GPL(pcibios_scan_specific_bus);
-int __init pci_subsys_init(void)
+static int __init pci_subsys_init(void)
{
/*
* The init function returns an non zero value when
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