[PATCH 6/8] powerpc: Check "status" property before adding legacy ISA serial ports
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2013-07-15 03:03:36
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- arch/powerpc/kernel/legacy_serial.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 5cf11b0..6f2a15c 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c@@ -386,9 +386,11 @@ void __init find_legacy_serial_ports(void) struct device_node *isa = of_get_parent(np); if (isa && (!strcmp(isa->name, "isa") || !strcmp(isa->name, "lpc"))) { - index = add_legacy_isa_port(np, isa); - if (index >= 0 && np == stdout) - legacy_serial_console = index; + if (of_device_is_available(np)) { + index = add_legacy_isa_port(np, isa); + if (index >= 0 && np == stdout) + legacy_serial_console = index; + } } of_node_put(isa); }
--
1.8.1.2