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xwayland: Prevents usage of invalid data pointer

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There are situations where the data pointer of a parent is NULL.
Checking for NULL first fixes e.g. a segmentation fault in CLion
when opening the settings window from a popup menu.

See also https://github.com/labwc/labwc/issues/1351#issuecomment-1867475324
This commit is contained in:
Jens Peters 2023-12-22 11:20:42 +01:00 • committed by Consolatis
parent 1e807ce654
commit 44c79c4963
1 changed files with 1 additions and 1 deletions
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2
src/xwayland.c
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@ -543,7 +543,7 @@ init_foreign_toplevel(struct view *view)
return;
}
struct view *parent = (struct view *)surface->parent->data;
if (!parent->toplevel.handle) {
if (!parent || !parent->toplevel.handle) {
return;
}
wlr_foreign_toplevel_handle_v1_set_parent(view->toplevel.handle, parent->toplevel.handle);