linux-kernel - [PATCH 1/2] gpio: sim: simplify gpio_sim_device_config_live

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Date:   Fri, 11 Aug 2023 15:14:26 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Kent Gibson <warthog618@...il.com>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 1/2] gpio: sim: simplify gpio_sim_device_config_live_store()

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Simplify the logic when checking the current live value against the user
input.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
This is the same as what Andy suggested for gpio-consumer. Let's save a
line.

 drivers/gpio/gpio-sim.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index dc4097dc0fbc..0177b41e0d72 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -986,8 +986,7 @@ gpio_sim_device_config_live_store(struct config_item *item,
 
 	mutex_lock(&dev->lock);
 
-	if ((!live && !gpio_sim_device_is_live_unlocked(dev)) ||
-	    (live && gpio_sim_device_is_live_unlocked(dev)))
+	if (live == gpio_sim_device_is_live_unlocked(dev))
 		ret = -EPERM;
 	else if (live)
 		ret = gpio_sim_device_activate_unlocked(dev);
-- 
2.39.2