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From: "Michał Kępień" <kernel@kempniu.pl>
To: Jonathan Woithe <jwoithe@just42.net>,
	Darren Hart <dvhart@infradead.org>,
	Andy Shevchenko <andy@infradead.org>
Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 04/11] platform/x86: fujitsu-laptop: simplify set_lcd_level()
Date: Thu, 30 Mar 2017 12:35:02 +0200	[thread overview]
Message-ID: <20170330103509.32509-5-kernel@kempniu.pl> (raw)
In-Reply-To: <20170330103509.32509-1-kernel@kempniu.pl>

acpi_execute_simple_method() takes a method parameter which tells it to
look for the given method underneath the given handle, so calling
acpi_get_handle() beforehand is redundant.  Replace the call to
acpi_get_handle() with a call to acpi_execute_simple_method(), thus
eliminating the need for a local variable storing the handle.  Also do
not assign a default value to status as it has no influence on execution
flow.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
---
 drivers/platform/x86/fujitsu-laptop.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 5005400b57bb..b888ba190fb2 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -358,8 +358,7 @@ static enum led_brightness eco_led_get(struct led_classdev *cdev)
 
 static int set_lcd_level(int level)
 {
-	acpi_status status = AE_OK;
-	acpi_handle handle = NULL;
+	acpi_status status;
 	char *method;
 
 	switch (use_alt_lcd_levels) {
@@ -377,16 +376,13 @@ static int set_lcd_level(int level)
 	if (level < 0 || level >= fujitsu_bl->max_brightness)
 		return -EINVAL;
 
-	status = acpi_get_handle(fujitsu_bl->acpi_handle, method, &handle);
+	status = acpi_execute_simple_method(fujitsu_bl->acpi_handle, method,
+					    level);
 	if (ACPI_FAILURE(status)) {
 		vdbg_printk(FUJLAPTOP_DBG_ERROR, "%s not present\n", method);
 		return -ENODEV;
 	}
 
-	status = acpi_execute_simple_method(handle, NULL, level);
-	if (ACPI_FAILURE(status))
-		return -ENODEV;
-
 	return 0;
 }
 
-- 
2.12.1

  parent reply	other threads:[~2017-03-30 10:35 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-30 10:34 [PATCH 00/11] fujitsu-laptop: backlight cleanup Michał Kępień
2017-03-30 10:34 ` [PATCH 01/11] platform/x86: fujitsu-laptop: only handle backlight when appropriate Michał Kępień
2017-03-30 10:35 ` [PATCH 02/11] platform/x86: fujitsu-laptop: switch to a managed backlight device Michał Kępień
2017-03-30 10:35 ` [PATCH 03/11] platform/x86: fujitsu-laptop: merge set_lcd_level_alt() into set_lcd_level() Michał Kępień
2017-03-30 10:35 ` Michał Kępień [this message]
2017-04-04  0:01   ` [PATCH 04/11] platform/x86: fujitsu-laptop: simplify set_lcd_level() Darren Hart
2017-04-04  9:39     ` [PATCH 04+/11] " Michał Kępień
2017-04-04 15:44       ` Darren Hart
2017-03-30 10:35 ` [PATCH 05/11] platform/x86: fujitsu-laptop: sync brightness in set_lcd_level() Michał Kępień
2017-03-30 10:35 ` [PATCH 06/11] platform/x86: fujitsu-laptop: clean up use_alt_lcd_levels handling Michał Kępień
2017-03-30 10:35 ` [PATCH 07/11] platform/x86: fujitsu-laptop: make disable_brightness_adjust a boolean Michał Kępień
2017-03-30 10:35 ` [PATCH 08/11] platform/x86: fujitsu-laptop: ignore errors when setting backlight power Michał Kępień
2017-03-30 10:35 ` [PATCH 09/11] platform/x86: fujitsu-laptop: do not log set_lcd_level() failures in bl_update_status() Michał Kępień
2017-03-30 10:35 ` [PATCH 10/11] platform/x86: fujitsu-laptop: account for backlight power when determining brightness Michał Kępień
2017-03-30 10:35 ` [PATCH 11/11] platform/x86: fujitsu-laptop: remove redundant fields from struct fujitsu_bl Michał Kępień
2017-04-04  1:16   ` Darren Hart
2017-04-04  1:18 ` [PATCH 00/11] fujitsu-laptop: backlight cleanup Darren Hart

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