powerpc/powernv/pci: Check status of a PHB before using it
If the firmware encounters an error (internal or HW) during initialization
of a PHB, it might leave the device-node in the tree but mark it disabled
using the "status" property. We should check it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index ed27f4c..891fc4a 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3516,6 +3516,9 @@
void *aux;
long rc;
+ if (!of_device_is_available(np))
+ return;
+
pr_info("Initializing %s PHB (%s)\n",
pnv_phb_names[ioda_type], of_node_full_name(np));