pwm: sun4i: Simplify with dev_err_probe()

	 * back to the first clock of the PWM.

	 */

	pwm->clk = devm_clk_get_optional(&pdev->dev, "mod");

	if (IS_ERR(pwm->clk)) {

		if (PTR_ERR(pwm->clk) != -EPROBE_DEFER)

			dev_err(&pdev->dev, "get mod clock failed %pe\n",

				pwm->clk);

		return PTR_ERR(pwm->clk);

	}

	if (IS_ERR(pwm->clk))

		return dev_err_probe(&pdev->dev, PTR_ERR(pwm->clk),

				     "get mod clock failed\n");

	if (!pwm->clk) {

		pwm->clk = devm_clk_get(&pdev->dev, NULL);

		if (IS_ERR(pwm->clk)) {

			if (PTR_ERR(pwm->clk) != -EPROBE_DEFER)

				dev_err(&pdev->dev, "get unnamed clock failed %pe\n",

					pwm->clk);

			return PTR_ERR(pwm->clk);

		}

		if (IS_ERR(pwm->clk))

			return dev_err_probe(&pdev->dev, PTR_ERR(pwm->clk),

					     "get unnamed clock failed\n");

	}

	pwm->bus_clk = devm_clk_get_optional(&pdev->dev, "bus");

	if (IS_ERR(pwm->bus_clk)) {

		if (PTR_ERR(pwm->bus_clk) != -EPROBE_DEFER)

			dev_err(&pdev->dev, "get bus clock failed %pe\n",

				pwm->bus_clk);

		return PTR_ERR(pwm->bus_clk);

	}

	if (IS_ERR(pwm->bus_clk))

		return dev_err_probe(&pdev->dev, PTR_ERR(pwm->bus_clk),

				     "get bus clock failed\n");

	pwm->rst = devm_reset_control_get_optional_shared(&pdev->dev, NULL);

	if (IS_ERR(pwm->rst)) {

		if (PTR_ERR(pwm->rst) != -EPROBE_DEFER)

			dev_err(&pdev->dev, "get reset failed %pe\n",

				pwm->rst);

		return PTR_ERR(pwm->rst);

	}

	if (IS_ERR(pwm->rst))

		return dev_err_probe(&pdev->dev, PTR_ERR(pwm->rst),

				     "get reset failed\n");

	/* Deassert reset */

	ret = reset_control_deassert(pwm->rst);