kernelshark: More memory leak clean ups

Found some more memory leak cleanups with valgrind. Running this:

G_SLICE=always-malloc G_DEBUG=gc-friendly valgrind --tool=memcheck \
  --leak-check=full --leak-resolution=high --num-callers=20 kernelshark

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

3 files changed, 11 insertions, 5 deletions

diff --git a/kernel-shark.c b/kernel-shark.c
index a860392..158b9ac 100644
--- a/kernel-shark.c
+++ b/kernel-shark.c
@@ -72,6 +72,13 @@ static void ks_graph_select(struct graph_info *ginfo, guint64 cursor)
         trace_view_select(info->treeview, cursor);
 }
 
+static void free_info(struct shark_info *info)
+{
+        tracecmd_close(info->handle);
+        free(info->ginfo);
+        free(info);
+}
+
 /* Callback for the clicked signal of the Exit button */
 static void
 exit_clicked (gpointer data)
@@ -79,7 +86,7 @@ exit_clicked (gpointer data)
         struct shark_info *info = data;
 
         gtk_widget_destroy (info->window); /* the user data points to the main window */
-        tracecmd_close(info->handle);
+        free_info(info);
         gtk_main_quit ();
 }
 
@@ -90,7 +97,7 @@ delete_event (GtkWidget *widget, GdkEvent *event, gpointer data)
         struct shark_info *info = data;
 
         gtk_widget_destroy (widget); /* destroy the main window */
-        tracecmd_close(info->handle);
+        free_info(info);
         gtk_main_quit ();
         return TRUE;
 }
diff --git a/trace-graph.c b/trace-graph.c
index da3162c..f7d98c1 100644
--- a/trace-graph.c
+++ b/trace-graph.c
@@ -1263,10 +1263,12 @@ trace_graph_create_with_callbacks(struct tracecmd_input *handle, GtkScrolledWind
                 if (record->ts < ginfo->start_time)
                         ginfo->start_time = record->ts;
 
+                free_record(record);
                 record = tracecmd_read_cpu_last(handle, cpu);
 
                 if (record->ts > ginfo->end_time)
                         ginfo->end_time = record->ts;
+                free_record(record);
         }
 
         convert_nano(ginfo->start_time, &sec, &usec);
diff --git a/trace-view.c b/trace-view.c
index 0b6affb..dadf35c 100644
--- a/trace-view.c
+++ b/trace-view.c
@@ -79,7 +79,6 @@ void
 trace_view_load(GtkWidget *view, struct tracecmd_input *handle,
                 GtkWidget *spin)
 {
-        GtkTreeViewColumn *col;
         GtkCellRenderer *renderer;
         GtkCellRenderer *fix_renderer;
         GtkTreeModel *model;
@@ -87,8 +86,6 @@ trace_view_load(GtkWidget *view, struct tracecmd_input *handle,
 
         /* --- CPU column --- */
 
-        col = gtk_tree_view_column_new();
-
         renderer = gtk_cell_renderer_text_new();
         fix_renderer = gtk_cell_renderer_text_new();