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powerpc: Check device status before adding serial device

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serial port nodes with the property status="disabled" are not usable and so
avoid adding "disabled" port with the system.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Prabhakar Kushwaha
2011-04-06 12:56:29 +05:30
committed by Kumar Gala
parent ef1fd2df85
commit 07d9fce24d
1 changed files with 5 additions and 3 deletions
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8
arch/powerpc/kernel/legacy_serial.c
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@@ -330,9 +330,11 @@ void __init find_legacy_serial_ports(void)
if (!parent) if (!parent)
continue; continue;
if (of_match_node(legacy_serial_parents, parent) != NULL) { if (of_match_node(legacy_serial_parents, parent) != NULL) {
index = add_legacy_soc_port(np, np); if (of_device_is_available(np)) {
if (index >= 0 && np == stdout) index = add_legacy_soc_port(np, np);
legacy_serial_console = index; if (index >= 0 && np == stdout)
legacy_serial_console = index;
}
} }
of_node_put(parent); of_node_put(parent);
} }