korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-19 02:04:19 +08:00
Code Issues Packages Projects Releases Wiki Activity

fujitsu-laptop: convert acpi_evaluate_object() to acpi_evaluate_integer()

Browse Source 
acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/platform/x86/fujitsu-laptop.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Zhang Rui 2013-09-03 08:32:12 +08:00 committed by Rafael J. Wysocki
parent 74da276028
commit 29c29a9bb4
1 changed files with 4 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/platform/x86/fujitsu-laptop.c
View File

@ -219,8 +219,7 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
{ .type = ACPI_TYPE_INTEGER }
};
struct acpi_object_list arg_list = { 4, &params[0] };
struct acpi_buffer output;
union acpi_object out_obj;
unsigned long long value;
acpi_handle handle = NULL;
status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
@ -235,10 +234,7 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
params[2].integer.value = arg1;
params[3].integer.value = arg2;
output.length = sizeof(out_obj);
output.pointer = &out_obj;
status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
status = acpi_evaluate_integer(handle, NULL, &arg_list, &value);
if (ACPI_FAILURE(status)) {
vdbg_printk(FUJLAPTOP_DBG_WARN,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
@ -246,18 +242,10 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
return -ENODEV;
}
if (out_obj.type != ACPI_TYPE_INTEGER) {
vdbg_printk(FUJLAPTOP_DBG_WARN,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
"return an integer\n",
cmd, arg0, arg1, arg2);
return -ENODEV;
}
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
return out_obj.integer.value;
cmd, arg0, arg1, arg2, (int)value);
return value;
}
#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)