linux-kernel - [PATCH] drm/bridge: lvds-encoder: remove surplus NULL checks

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Date:   Fri, 18 Jan 2019 23:11:38 +0000
From:   Peter Rosin <peda@...ntia.se>
To:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Peter Rosin <peda@...ntia.se>,
        Archit Taneja <architt@...eaurora.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
Subject: [PATCH] drm/bridge: lvds-encoder: remove surplus NULL checks

The gpio API explicitly allows skipping the NULL check, precisely to
allow for neat support for optional gpios. Which is exactly what is at
play here.

Reported-by: Andrzej Hajda <a.hajda@...sung.com>
Signed-off-by: Peter Rosin <peda@...ntia.se>
---
 drivers/gpu/drm/bridge/lvds-encoder.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/lvds-encoder.c b/drivers/gpu/drm/bridge/lvds-encoder.c
index 36d8557bc097..584007eaf6e1 100644
--- a/drivers/gpu/drm/bridge/lvds-encoder.c
+++ b/drivers/gpu/drm/bridge/lvds-encoder.c
@@ -36,8 +36,7 @@ static void lvds_encoder_enable(struct drm_bridge *bridge)
 							 struct lvds_encoder,
 							 bridge);
 
-	if (lvds_encoder->powerdown_gpio)
-		gpiod_set_value_cansleep(lvds_encoder->powerdown_gpio, 0);
+	gpiod_set_value_cansleep(lvds_encoder->powerdown_gpio, 0);
 }
 
 static void lvds_encoder_disable(struct drm_bridge *bridge)
@@ -46,8 +45,7 @@ static void lvds_encoder_disable(struct drm_bridge *bridge)
 							 struct lvds_encoder,
 							 bridge);
 
-	if (lvds_encoder->powerdown_gpio)
-		gpiod_set_value_cansleep(lvds_encoder->powerdown_gpio, 1);
+	gpiod_set_value_cansleep(lvds_encoder->powerdown_gpio, 1);
 }
 
 static struct drm_bridge_funcs funcs = {
-- 
2.11.0