linux-kernel - [PATCH] gpio: gpio-amd-fch: Correct logic of GPIO_LINE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200920203430.25829-1-lists@wildgooses.com>
Date:   Sun, 20 Sep 2020 21:34:30 +0100
From:   Ed Wildgoose <lists@...dgooses.com>
To:     linux-kernel@...r.kernel.org
Cc:     fe@....tdt.de, Ed Wildgoose <lists@...dgooses.com>,
        "Enrico Weigelt, metux IT consult" <info@...ux.net>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-gpio@...r.kernel.org
Subject: [PATCH] gpio: gpio-amd-fch: Correct logic of GPIO_LINE_DIRECTION

The original commit appears to have the logic reversed in
amd_fch_gpio_get_direction. Also confirmed by observing the value of
"direction" in the sys tree.

Signed-off-by: Ed Wildgoose <lists@...dgooses.com>
---
 drivers/gpio/gpio-amd-fch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-amd-fch.c b/drivers/gpio/gpio-amd-fch.c
index 4e44ba4d7..2a21354ed 100644
--- a/drivers/gpio/gpio-amd-fch.c
+++ b/drivers/gpio/gpio-amd-fch.c
@@ -92,7 +92,7 @@ static int amd_fch_gpio_get_direction(struct gpio_chip *gc, unsigned int gpio)
 	ret = (readl_relaxed(ptr) & AMD_FCH_GPIO_FLAG_DIRECTION);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	return ret ? GPIO_LINE_DIRECTION_IN : GPIO_LINE_DIRECTION_OUT;
+	return ret ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
 }
 
 static void amd_fch_gpio_set(struct gpio_chip *gc,
-- 
2.26.2