3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
commit bf3d6afbb234156749b640b6c50f714967a85964 upstream.
Commit 78e5dfea84dc ("powerpc: dts: replace 'linux,stdout-path' with
'stdout-path'") broke the default console on a number of embedded
PowerPC systems, because it failed to also update the code in
arch/powerpc/kernel/legacy_serial.c to look for that property in
addition to the old one.
This fixes it.
Fixes: 78e5dfea84dc ("powerpc: dts: replace 'linux,stdout-path' with 'stdout-path'")
Cc: stable@xxxxxxxxxxxxxxx # v4.17+
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/powerpc/kernel/legacy_serial.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -370,6 +370,8 @@ void __init find_legacy_serial_ports(voi
/* Now find out if one of these is out firmware console */
path = of_get_property(of_chosen, "linux,stdout-path", NULL);
+ if (path == NULL)
+ path = of_get_property(of_chosen, "stdout-path", NULL);
if (path != NULL) {
stdout = of_find_node_by_path(path);
if (stdout)
@@ -593,8 +595,10 @@ static int __init check_legacy_serial_co
/* We are getting a weird phandle from OF ... */
/* ... So use the full path instead */
name = of_get_property(of_chosen, "linux,stdout-path", NULL);
+ if (name == NULL)
+ name = of_get_property(of_chosen, "stdout-path", NULL);
if (name == NULL) {
- DBG(" no linux,stdout-path !\n");
+ DBG(" no stdout-path !\n");
return -ENODEV;
}
prom_stdout = of_find_node_by_path(name);
