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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-10-12 03:49:48 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-10-12 03:49:48 +0400
commitfd3cfebec3199bb89acead236b1ab12c349ed4e0 (patch)
treec94ae748454e63866d11619792ce1651fb819816 /drivers/pci
parent5d4494573c1fed806b97c2a1ba619d50bb89d1ed (diff)
downloadlinux-fd3cfebec3199bb89acead236b1ab12c349ed4e0.tar.xz
ACPI / hotplug / PCI: Drop WARN_ON() from acpiphp_enumerate_slots()
The WARN_ON() in acpiphp_enumerate_slots() triggers unnecessarily for devices whose bridges are going to be handled by native PCIe hotplug (pciehp) and the simplest way to prevent that from happening is to drop the WARN_ON(). References: https://bugzilla.kernel.org/show_bug.cgi?id=62831 Reported-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 5042b572609e..be12fbfcae10 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -994,12 +994,13 @@ void acpiphp_enumerate_slots(struct pci_bus *bus)
/*
* This bridge should have been registered as a hotplug function
- * under its parent, so the context has to be there. If not, we
- * are in deep goo.
+ * under its parent, so the context should be there, unless the
+ * parent is going to be handled by pciehp, in which case this
+ * bridge is not interesting to us either.
*/
mutex_lock(&acpiphp_context_lock);
context = acpiphp_get_context(handle);
- if (WARN_ON(!context)) {
+ if (!context) {
mutex_unlock(&acpiphp_context_lock);
put_device(&bus->dev);
pci_dev_put(bridge->pci_dev);