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platform/x86: fujitsu-laptop: simplify set_lcd_level() 

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.  Update
debug message to reflect this change.  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>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
This commit is contained in:
Michał Kępień 2017-04-05 08:49:03 +02:00 committed by Darren Hart (VMware)
parent e32c50ba5a
commit a8779c35b6
1 changed files with 5 additions and 8 deletions
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13
drivers/platform/x86/fujitsu-laptop.c
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@ -343,8 +343,7 @@ 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) {
@ -362,16 +361,14 @@ 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);
vdbg_printk(FUJLAPTOP_DBG_ERROR, "Failed to evaluate %s\n",
method);
return -ENODEV;
}
status = acpi_execute_simple_method(handle, NULL, level);
if (ACPI_FAILURE(status))
return -ENODEV;
return 0;
}