Added missing NULL checks

3 files changed, 9 insertions, 0 deletions

diff --git a/cairo.c b/cairo.c
index da59146..342ab11 100644
--- a/cairo.c
+++ b/cairo.c
@@ -98,6 +98,8 @@ groupCreateCairoLayer (CompScreen *s,
 
 
     layer = malloc (sizeof (GroupCairoLayer));
+    if (!layer)
+        return NULL;
 
     layer->surface = NULL;
     layer->cairo   = NULL;
diff --git a/group.c b/group.c
index 8ffd302..e946cd4 100644
--- a/group.c
+++ b/group.c
@@ -639,8 +639,12 @@ groupAddWindowToGroup (CompWindow     *w,
     {
 	/* create new group */
 	GroupSelection *g = malloc (sizeof (GroupSelection));
+	if (!g)
+	    return;
 
 	g->windows = malloc (sizeof (CompWindow *));
+	if (!g->windows) 
+	    return;
 
 	g->windows[0] = w;
 	g->screen     = w->screen;
diff --git a/tab.c b/tab.c
index b7076ef..27d0087 100644
--- a/tab.c
+++ b/tab.c
@@ -2175,6 +2175,9 @@ void groupCreateSlot (GroupSelection *group,
 	return;
 
     slot = malloc (sizeof (GroupTabBarSlot));
+    if (!slot)
+        return;
+
     slot->window = w;
 
     slot->region = XCreateRegion ();