From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Mon, 8 Nov 2021 13:46:25 +0000 (+0100)
Subject: pwm: meson: Drop useless check for channel data being NULL
X-Git-Tag: v5.18-rc1~54^2~43
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cb971fdb45921bda5b253b6916d8380faec8a8d8;p=thirdparty%2Flinux.git

pwm: meson: Drop useless check for channel data being NULL

In meson_pwm_free() the function pwm_get_chip_data() always returns a
non-NULL pointer because it's only called when the request callback
succeeded and this callback calls pwm_set_chip_data() in this case.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---

diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index be3c806b57e4f..1fbe54a2abfe1 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -148,8 +148,7 @@ static void meson_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
 
-	if (channel)
-		clk_disable_unprepare(channel->clk);
+	clk_disable_unprepare(channel->clk);
 }
 
 static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,