layout: Do not attempt to activate surfaces that doesn't have a valid app_id

Observed when trying to activate (a previous one, as a result
of deactivation) a surface that didn't had an application id set.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: I3c39ae7dfb237e53f4b2bad64e7bc5ef91a76f0c

diff --git a/src/layout.c b/src/layout.c
index 0345807..0363af7 100644 (file)
--- a/src/layout.c
+++ b/src/layout.c
@@ -745,6 +745,9 @@ ivi_layout_activate(struct ivi_output *output, const char *app_id)
        struct ivi_surface *surf;
        struct ivi_compositor *ivi = output->ivi;
 
+       if (!app_id)
+               return;
+
        surf = ivi_find_app(ivi, app_id);
        if (!surf)
                return;
@@ -798,6 +801,9 @@ ivi_layout_deactivate(struct ivi_compositor *ivi, const char *app_id)
        struct ivi_output *ivi_output;
        struct ivi_policy *policy = ivi->policy;
 
+       if (!app_id)
+               return;
+
        surf = ivi_find_app(ivi, app_id);
        if (!surf)
                return;