mirror of https://gitee.com/openkylin/linux.git
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:
parent
e32c50ba5a
commit
a8779c35b6
|
@ -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;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue