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Fix container_has_ancestor crash

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Fixes #2450
This commit is contained in:
Ryan Dwyer 2018-08-12 00:13:43 +10:00
parent 2aa6d98c5a
commit 5f3757c927
1 changed files with 1 additions and 1 deletions
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2
sway/tree/container.c
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@ -769,7 +769,7 @@ void container_for_each_descendant(struct sway_container *container,
bool container_has_ancestor(struct sway_container *descendant, bool container_has_ancestor(struct sway_container *descendant,
struct sway_container *ancestor) { struct sway_container *ancestor) {
while (descendant->type != C_ROOT) { while (descendant && descendant->type != C_ROOT) {
descendant = descendant->parent; descendant = descendant->parent;
if (descendant == ancestor) { if (descendant == ancestor) {
return true; return true;