Signed-off-by: Benjamin Herrenschmidt <[email protected]>
---
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
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