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[v2,1/3] platform/x86: fujitsu-laptop: clean up local variables in call_fext_func()

Message ID 20170405065023.3267-2-kernel@kempniu.pl (mailing list archive)
State Changes Requested, archived
Delegated to: Darren Hart
Headers show

Commit Message

Michał Kępień April 5, 2017, 6:50 a.m. UTC 
Set values of FUNC call parameters in a designated initializer.  Do not
initialize status and handle variables as the values these are
initialized to have no influence on execution flow.  Use an array
variable instead of the address of the first element of that array.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
---
 drivers/platform/x86/fujitsu-laptop.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)
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Patch

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index f66da4b0c31a..ca1491ff659e 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -219,16 +219,16 @@  static u32 dbg_level = 0x03;
 
 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 {
-	acpi_status status = AE_OK;
 	union acpi_object params[4] = {
-	{ .type = ACPI_TYPE_INTEGER },
-	{ .type = ACPI_TYPE_INTEGER },
-	{ .type = ACPI_TYPE_INTEGER },
-	{ .type = ACPI_TYPE_INTEGER }
+		{ .integer.type = ACPI_TYPE_INTEGER, .integer.value = cmd },
+		{ .integer.type = ACPI_TYPE_INTEGER, .integer.value = arg0 },
+		{ .integer.type = ACPI_TYPE_INTEGER, .integer.value = arg1 },
+		{ .integer.type = ACPI_TYPE_INTEGER, .integer.value = arg2 }
 	};
-	struct acpi_object_list arg_list = { 4, &params[0] };
+	struct acpi_object_list arg_list = { 4, params };
 	unsigned long long value;
-	acpi_handle handle = NULL;
+	acpi_status status;
+	acpi_handle handle;
 
 	status = acpi_get_handle(fujitsu_laptop->acpi_handle, "FUNC", &handle);
 	if (ACPI_FAILURE(status)) {
@@ -237,11 +237,6 @@  static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 		return -ENODEV;
 	}
 
-	params[0].integer.value = cmd;
-	params[1].integer.value = arg0;
-	params[2].integer.value = arg1;
-	params[3].integer.value = arg2;
-
 	status = acpi_evaluate_integer(handle, NULL, &arg_list, &value);
 	if (ACPI_FAILURE(status)) {
 		vdbg_printk(FUJLAPTOP_DBG_WARN,