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

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acpi_evaluate_integer() takes a pathname parameter which contains the
name of the entity to evaluate underneath the given handle, so calling
acpi_get_handle() beforehand is redundant.  Replace the call to
acpi_get_handle() with a call to acpi_evaluate_integer(), thus
eliminating the need for a local variable storing the handle.  Adjust
whitespace to make checkpatch happy.

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 2017-04-03 11:38:58 +02:00 committed by Darren Hart (VMware)
parent b10664105d
commit 17e2355561
1 changed files with 3 additions and 12 deletions
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15
drivers/platform/x86/fujitsu-laptop.c
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@ -228,20 +228,11 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
struct acpi_object_list arg_list = { 4, params };
unsigned long long value;
acpi_status status;
acpi_handle handle;
status = acpi_get_handle(fujitsu_laptop->acpi_handle, "FUNC", &handle);
status = acpi_evaluate_integer(fujitsu_laptop->acpi_handle, "FUNC",
&arg_list, &value);
if (ACPI_FAILURE(status)) {
vdbg_printk(FUJLAPTOP_DBG_ERROR,
"FUNC interface is not present\n");
return -ENODEV;
}
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",
cmd, arg0, arg1, arg2);
vdbg_printk(FUJLAPTOP_DBG_ERROR, "FUNC interface is not present\n");
return -ENODEV;
}