clk: Print an error when clk registration fails

We have a lot of driver code that prints an error message when
registering a clk fails. Do that in the core function instead to
consolidate code. This also helps drivers avoid the anti-pattern of
accessing the struct clk_hw::init pointer after registration.

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20250226235408.1339266-1-sboyd@kernel.org

Author: bebarino

drivers/clk/clk.c

@@ -4397,6 +4397,13 @@ __clk_register(struct device *dev, struct device_node *np, struct clk_hw *hw)
 fail_name:
 	kref_put(&core->ref, __clk_release);
 fail_out:
+	if (dev) {
+		dev_err_probe(dev, ret, "failed to register clk '%s' (%pS)\n",
+			      init->name, hw);
+	} else {
+		pr_err("%pOF: error %pe: failed to register clk '%s' (%pS)\n",
+		       np, ERR_PTR(ret), init->name, hw);
+	}
 	return ERR_PTR(ret);
 }