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of: device: Ignore modalias of reused nodes

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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>
This commit is contained in:
Alexander Stein 2023-02-07 12:05:29 +01:00 committed by Greg Kroah-Hartman
parent 8488a831e0
commit 553bd29700
1 changed files with 2 additions and 2 deletions
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4
drivers/of/device.c
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@ -256,7 +256,7 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len
ssize_t csize;
ssize_t tsize;
if ((!dev) || (!dev->of_node))
if ((!dev) || (!dev->of_node) || dev->of_node_reused)
return -ENODEV;
/* Name & Type */
@ -376,7 +376,7 @@ int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env)
{
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 */