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base: core: Remove WARN_ON from link dependencies check
In some cases the link between between customer and supplier already exist, for example when a device use its parent as a supplier. Do not warn about already existing dependencies because device_link_add() takes care of this case. Link: http://lkml.kernel.org/r/20180709111753eucas1p1f32e66fb2f7ea3216097cd72a132355d~-rzycA5Rg0378203782eucas1p1C@eucas1p1.samsung.com Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Reviewed-by: Rafael J. Wysocki <rafael@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 2 deletions
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@ -105,7 +105,7 @@ static int device_is_dependent(struct device *dev, void *target)
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struct device_link *link;
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int ret;
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if (WARN_ON(dev == target))
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if (dev == target)
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return 1;
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ret = device_for_each_child(dev, target, device_is_dependent);
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@ -113,7 +113,7 @@ static int device_is_dependent(struct device *dev, void *target)
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return ret;
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list_for_each_entry(link, &dev->links.consumers, s_node) {
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if (WARN_ON(link->consumer == target))
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if (link->consumer == target)
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return 1;
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ret = device_is_dependent(link->consumer, target);
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