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xwayland/xwm: Avoid zero-size allocaiton 

Zero-sized allocations have glibc-specific behavior, so avoid those.
This commit is contained in:
Kenny Levinsen 2024-02-22 13:44:46 +01:00
parent 0cb091f1a2
commit 837060f894
1 changed files with 11 additions and 8 deletions
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19
xwayland/xwm.c
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@ -290,15 +290,18 @@ static void xwm_set_net_client_list(struct wlr_xwm *xwm) {
}
}
xcb_window_t *windows = malloc(sizeof(xcb_window_t) * mapped_surfaces);
if (!windows) {
return;
}
xcb_window_t *windows = NULL;
if (mapped_surfaces > 0) {
xcb_window_t *windows = malloc(sizeof(*windows) * mapped_surfaces);
if (!windows) {
return;
}
size_t index = 0;
wl_list_for_each(surface, &xwm->surfaces, link) {
if (surface->surface != NULL && surface->surface->mapped) {
windows[index++] = surface->window_id;
size_t index = 0;
wl_list_for_each(surface, &xwm->surfaces, link) {
if (surface->surface != NULL && surface->surface->mapped) {
windows[index++] = surface->window_id;
}
}
}