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powerpc: Check "status" property before adding legacy ISA serial ports

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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2013-07-15 13:03:13 +10:00
parent 309257484c
commit e0f5fa99a3
1 changed files with 5 additions and 3 deletions
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8
arch/powerpc/kernel/legacy_serial.c
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@@ -386,9 +386,11 @@ void __init find_legacy_serial_ports(void)
struct device_node *isa = of_get_parent(np); struct device_node *isa = of_get_parent(np);
if (isa && (!strcmp(isa->name, "isa") || if (isa && (!strcmp(isa->name, "isa") ||
!strcmp(isa->name, "lpc"))) { !strcmp(isa->name, "lpc"))) {
index = add_legacy_isa_port(np, isa); if (of_device_is_available(np)) {
if (index >= 0 && np == stdout) index = add_legacy_isa_port(np, isa);
legacy_serial_console = index; if (index >= 0 && np == stdout)
legacy_serial_console = index;
}
} }
of_node_put(isa); of_node_put(isa);
} }