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authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-09-11 14:46:53 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-09-11 14:46:53 +0200
commit336879b1da97fffc097f77c6d6f818660f2826f0 (patch)
tree4ddb4d1c5d2b67fb096c72e41d2a03b01a605041 /drivers/pci/hotplug/pciehp_core.c
parent3d3cbd84300e7be1e53083cac0f6f9c12978ecb4 (diff)
parentfdcaa1dbb7c6ed419b10fb8cdb5001ab0a00538f (diff)
Merge remote-tracking branch 'airlied/drm-next' into topic/vblank-rework
Dave asked me to do the backmerge before sending him the revised pull request, so here we go. Nothing fancy in the conflicts, just a few things changed right next to each another. Conflicts: drivers/gpu/drm/drm_irq.c Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/pci/hotplug/pciehp_core.c')
-rw-r--r--drivers/pci/hotplug/pciehp_core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index a2297db8081..07aa722bb12 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -255,6 +255,13 @@ static int pciehp_probe(struct pcie_device *dev)
else if (pciehp_acpi_slot_detection_check(dev->port))
goto err_out_none;
+ if (!dev->port->subordinate) {
+ /* Can happen if we run out of bus numbers during probe */
+ dev_err(&dev->device,
+ "Hotplug bridge without secondary bus, ignoring\n");
+ goto err_out_none;
+ }
+
ctrl = pcie_init(dev);
if (!ctrl) {
dev_err(&dev->device, "Controller initialization failed\n");