clk: Propagate any error return from debug_init()

If the .debug_init op is provided, it will be called by
clk_debug_create_one(). If debug_init() returns an error code,
clk_debug_create_one() will return -ENOMEM, regardless of the
value returned from debug_init(). Tweak the code to return
the actual value returned by debug_init() instead.

Signed-off-by: Chris Brand <[e-mail]>
Reviewed-by: Matt Porter <[e-mail]>
Reviewed-by: Alex Elder <[e-mail]>
Signed-off-by: Mike Turquette <[e-mail]>

drivers/clk/clk.c

···
 	if (!d)
 		goto err_out;
 
-	if (clk->ops->debug_init)
-		if (clk->ops->debug_init(clk->hw, clk->dentry))
+	if (clk->ops->debug_init) {
+		ret = clk->ops->debug_init(clk->hw, clk->dentry);
+		if (ret)
 			goto err_out;
+	}
 
 	ret = 0;
 	goto out;