fix segfault when the default window is not the clock

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/clocks.c b/clocks.c
index d08c926..ecc72ea 100644
--- a/clocks.c
+++ b/clocks.c
@@ -255,7 +255,7 @@ int read_and_print_clock_info(int verbose, int hrow, int selected)
 		read_clock_info(clk_dir_path);
 	}
 
-	if (!clocks_info->num_children) {
+	if (!clocks_info || !clocks_info->num_children) {
 		fprintf(stderr, "powerdebug: No clocks found. Exiting..\n");
 		exit(1);
 	}