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From 553bd29700145e1849698985e9800f14e967da49 Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@ew.tq-group.com>
Date: Tue, 7 Feb 2023 12:05:29 +0100
Subject: [PATCH] of: device: Ignore modalias of reused nodes
If of_node is reused, do not use that node's modalias. This will hide
the name of the actual device. This is rather prominent in USB glue
drivers creating a platform device for the host controller.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230207110531.1060252-2-alexander.stein@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/of/device.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -249,7 +249,7 @@ static ssize_t of_device_get_modalias(st
ssize_t csize;
ssize_t tsize;
- if ((!dev) || (!dev->of_node))
+ if ((!dev) || (!dev->of_node) || dev->of_node_reused)
return -ENODEV;
/* Name & Type */
@@ -372,7 +372,7 @@ int of_device_uevent_modalias(struct dev
{
int sl;
- if ((!dev) || (!dev->of_node))
+ if ((!dev) || (!dev->of_node) || dev->of_node_reused)
return -ENODEV;
/* Devicetree modalias is tricky, we add it in 2 steps */
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