sh: Check return value of clk_get on ecovec24

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/boards/mach-ecovec24/setup.c

@@ -1136,16 +1136,20 @@ static int __init arch_setup(void)
 
 	/* set SPU2 clock to 83.4 MHz */
 	clk = clk_get(NULL, "spu_clk");
+	if (clk) {
 		clk_set_rate(clk, clk_round_rate(clk, 83333333));
 		clk_put(clk);
+	}
 
 	/* change parent of FSI B */
 	clk = clk_get(NULL, "fsib_clk");
+	if (clk) {
 		clk_register(&fsimckb_clk);
 		clk_set_parent(clk, &fsimckb_clk);
 		clk_set_rate(clk, 11000);
 		clk_set_rate(&fsimckb_clk, 11000);
 		clk_put(clk);
+	}
 
 	gpio_request(GPIO_PTU0, NULL);
 	gpio_direction_output(GPIO_PTU0, 0);
@@ -1157,8 +1161,10 @@ static int __init arch_setup(void)
 
 	/* set VPU clock to 166 MHz */
 	clk = clk_get(NULL, "vpu_clk");
+	if (clk) {
 		clk_set_rate(clk, clk_round_rate(clk, 166000000));
 		clk_put(clk);
+	}
 
 	/* enable IrDA */
 	gpio_request(GPIO_FN_IRDA_OUT, NULL);