linux-kernel - [PATCH] platform/x86: thinkpad_acpi: Remove always false 'value

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Message-ID: <1588150780-53718-1-git-send-email-wangxiongfeng2@huawei.com>
Date:   Wed, 29 Apr 2020 16:59:40 +0800
From:   Xiongfeng Wang <wangxiongfeng2@...wei.com>
To:     <ibm-acpi@....eng.br>, <dvhart@...radead.org>,
        <andy@...radead.org>, <ibm-acpi-devel@...ts.sourceforge.net>,
        <platform-driver-x86@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <wangxiongfeng2@...wei.com>
Subject: [PATCH] platform/x86: thinkpad_acpi: Remove always false 'value < 0' statement

Since 'value' is declared as unsigned long, the following statement is
always false.
	value < 0

So let's remove it.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@...wei.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 8eaadba..0f70448 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -9548,7 +9548,7 @@ static ssize_t tpacpi_battery_store(int what,
 		if (!battery_info.batteries[battery].start_support)
 			return -ENODEV;
 		/* valid values are [0, 99] */
-		if (value < 0 || value > 99)
+		if (value > 99)
 			return -EINVAL;
 		if (value > battery_info.batteries[battery].charge_stop)
 			return -EINVAL;
-- 
1.7.12.4