clk: ingenic/jz4770: Exit with error if CGU init failed

Exit jz4770_cgu_init() if the 'cgu' pointer we get is NULL, since the
pointer is passed as argument to functions later on.

Fixes: 7a01c19 ("clk: Add Ingenic jz4770 CGU driver")
Cc: [email protected]
Signed-off-by: Paul Cercueil <[email protected]>
Reported-by: kbuild test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Stephen Boyd <[email protected]>

Author: pcercuei

drivers/clk/ingenic/jz4770-cgu.c

@@ -432,8 +432,10 @@ static void __init jz4770_cgu_init(struct device_node *np)
 
 	cgu = ingenic_cgu_new(jz4770_cgu_clocks,
 			      ARRAY_SIZE(jz4770_cgu_clocks), np);
-	if (!cgu)
+	if (!cgu) {
 		pr_err("%s: failed to initialise CGU\n", __func__);
+		return;
+	}
 
 	retval = ingenic_cgu_register_clocks(cgu);
 	if (retval)