sh: Check return value of clk_get on ms7724

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

arch/sh/boards/mach-se/7724/setup.c

@@ -769,16 +769,20 @@ static int __init devices_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 A */
 	clk = clk_get(NULL, "fsia_clk");
+	if (clk) {
 		clk_register(&fsimcka_clk);
 		clk_set_parent(clk, &fsimcka_clk);
 		clk_set_rate(clk, 11000);
 		clk_set_rate(&fsimcka_clk, 11000);
 		clk_put(clk);
+	}
 
 	/* SDHI0 connected to cn7 */
 	gpio_request(GPIO_FN_SDHI0CD, NULL);