backend/drm: fix missing wlr_drm_format.cap
This caused issues with wlr_drm_format_dup.
@@ -100,6 +100,7 @@ static bool init_drm_surface(struct wlr_drm_surface *surf,
}
format_linear->format = drm_format->format;
format_linear->len = 1;
+ format_linear->cap = 1;
format_linear->modifiers[0] = DRM_FORMAT_MOD_LINEAR;
drm_format = format_linear;
}
