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authorSaravana Kannan <saravanak@google.com>2019-11-20 00:02:29 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-21 13:01:15 +0100
commit3883539140b8ce67ad000938c3cd3b3e59498520 (patch)
tree777bb75c18012169015acd735cdd96fa3ba4d473 /drivers/of
parent60774d2af07a465dc916321e7428a4c5b7867ed4 (diff)
downloadlinux-3883539140b8ce67ad000938c3cd3b3e59498520.tar.gz
of: property: Fix the semantics of of_is_ancestor_of()
The of_is_ancestor_of() function was renamed from of_link_is_valid()
based on review feedback. The rename meant the semantics of the function
had to be inverted, but this was missed in the earlier patch.

So, fix the semantics of of_is_ancestor_of() and invert the conditional
expressions where it is used.

Fixes: a3e1d1a7f5fc ("of: property: Add functional dependency link from DT bindings")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20191120080230.16007-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/of')
-rw-r--r--drivers/of/property.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 0fa04692e3cc..3c75dd2f7c02 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -993,11 +993,11 @@ static bool of_is_ancestor_of(struct device_node *test_ancestor,
 	while (child) {
 		if (child == test_ancestor) {
 			of_node_put(child);
-			return false;
+			return true;
 		}
 		child = of_get_next_parent(child);
 	}
-	return true;
+	return false;
 }
 
 /**
@@ -1043,7 +1043,7 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np,
 	 * descendant nodes. By definition, a child node can't be a functional
 	 * dependency for the parent node.
 	 */
-	if (!of_is_ancestor_of(dev->of_node, sup_np)) {
+	if (of_is_ancestor_of(dev->of_node, sup_np)) {
 		dev_dbg(dev, "Not linking to %pOFP - is descendant\n", sup_np);
 		of_node_put(sup_np);
 		return -EINVAL;