linux-kernel - [PATCH][next] platform/x86: thinkpad_acpi: remove redundant assignment to variable i

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Date: Sat,  6 Jan 2024 15:47:40 +0000
From: Colin Ian King <colin.i.king@...il.com>
To: Henrique de Moraes Holschuh <hmh@....eng.br>,
	Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	ibm-acpi-devel@...ts.sourceforge.net,
	platform-driver-x86@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] platform/x86: thinkpad_acpi: remove redundant assignment to variable i

The variable i is being initialized with the value 0 that is never
read, it is being re-assigned 0 again in a for-loop statement later
on. The initialization is redundant and can be removed.

The initialization of variable n can also be deferred after the
sanity check on pointer n and the declaration of all the int variables
can be combined as a final code clear-up.

Cleans up clang scan build warning:
warning: Value stored to 'i' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index c4895e9bc714..7bf91cfd3e51 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6208,17 +6208,15 @@ static int thermal_get_sensor(int idx, s32 *value)
 
 static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
 {
-	int res, i;
-	int n;
-
-	n = 8;
-	i = 0;
+	int res, i, n;
 
 	if (!s)
 		return -EINVAL;
 
 	if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
 		n = 16;
+	else
+		n = 8;
 
 	for (i = 0 ; i < n; i++) {
 		res = thermal_get_sensor(i, &s->temp[i]);
-- 
2.39.2