clk: at91: clk-generated: continue if __clk_determine_rate() returns error

__clk_determine_rate() may return error. Skip the current step
in case of error.

Fixes: 1a1a36d7 ("clk: at91: clk-generated: make gclk determine audio_pll rate")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1595403506-8209-2-git-send-email-claudiu.beznea@microchip.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/at91/clk-generated.c

@@ -170,7 +170,8 @@ static int clk_generated_determine_rate(struct clk_hw *hw,
 
 	for (div = 1; div < GENERATED_MAX_DIV + 2; div++) {
 		req_parent.rate = req->rate * div;
-		__clk_determine_rate(parent, &req_parent);
+		if (__clk_determine_rate(parent, &req_parent))
+			continue;
 		clk_generated_best_diff(req, parent, req_parent.rate, div,
 					&best_diff, &best_rate);