linux-kernel - [PATCH] cklight: tps65217_bl: Remove unnecessary default brightness check

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Date:   Sun,  8 Oct 2017 22:56:48 +0100
From:   Christos Gkekas <chris.gekas@...il.com>
To:     Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Christos Gkekas <chris.gekas@...il.com>
Subject: [PATCH] cklight: tps65217_bl: Remove unnecessary default brightness check

Variable val holds the default brightness and is unsigned, therefore
checking whether it is less than zero is redundant.

Signed-off-by: Christos Gkekas <chris.gekas@...il.com>
---
 drivers/video/backlight/tps65217_bl.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c
index fd524ad..61ea82d 100644
--- a/drivers/video/backlight/tps65217_bl.c
+++ b/drivers/video/backlight/tps65217_bl.c
@@ -239,8 +239,7 @@ tps65217_bl_parse_dt(struct platform_device *pdev)
 	}
 
 	if (!of_property_read_u32(node, "default-brightness", &val)) {
-		if (val < 0 ||
-			val > 100) {
+		if (val > 100) {
 			dev_err(&pdev->dev,
 				"invalid 'default-brightness' value in the device tree\n");
 			err = ERR_PTR(-EINVAL);
-- 
2.7.4