clk: meson: gxbb: protect against holes in the onecell_data array

The clock controller is getting more complex and it might be possible, in
the future, to have holes in the clk_hw_onecell_data array. Just make sure
we skip those holes if it ever happens.
Acked-by: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

drivers/clk/meson/gxbb.c

@@ -1388,6 +1388,10 @@ static int gxbb_clkc_probe(struct platform_device *pdev)
 	 * register all clks
 	 */
 	for (clkid = 0; clkid < clkc_data->hw_onecell_data->num; clkid++) {
+		/* array might be sparse */
+		if (!clkc_data->hw_onecell_data->hws[clkid])
+			continue;
+
 		ret = devm_clk_hw_register(dev,
 					clkc_data->hw_onecell_data->hws[clkid]);
 		if (ret)