[PATCH] powerpc/pseries: remove returning ENODEV when uevent is triggered

[Lidong Zhong]

We have noticed the following nuisance messages during boot

[    7.120610][ T1060] vio vio: uevent: failed to send synthetic uevent
[    7.122281][ T1060] vio 4000: uevent: failed to send synthetic uevent
[    7.122304][ T1060] vio 4001: uevent: failed to send synthetic uevent
[    7.122324][ T1060] vio 4002: uevent: failed to send synthetic uevent
[    7.122345][ T1060] vio 4004: uevent: failed to send synthetic uevent

It's caused by either vio_register_device_node() failed to set dev->of_node or
the missing "compatible" property. Try return as much information as possible
instead of a failure. The above annoying errors can also be removed
after the patch applied.

Signed-off-by: Lidong Zhong <lidong.zhong at suse.com>
---
 arch/powerpc/platforms/pseries/vio.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 90ff85c879bf..62961715ca24 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -1593,12 +1593,13 @@ static int vio_hotplug(const struct device *dev, struct kobj_uevent_env *env)
 
 	dn = dev->of_node;
 	if (!dn)
-		return -ENODEV;
+		goto out;
 	cp = of_get_property(dn, "compatible", NULL);
 	if (!cp)
-		return -ENODEV;
-
-	add_uevent_var(env, "MODALIAS=vio:T%sS%s", vio_dev->type, cp);
+		add_uevent_var(env, "MODALIAS=vio:T%s", vio_dev->type);
+    else
+		add_uevent_var(env, "MODALIAS=vio:T%sS%s", vio_dev->type, cp);
+out:
 	return 0;
 }
 
-- 
2.35.3