linux-kernel - [PATCH 1/2] platform/x86: huawei-wmi: Stricter battery thresholds set

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Date:   Fri, 18 Oct 2019 18:42:13 -0400
From:   Ayman Bagabas <ayman.bagabas@...il.com>
To:     Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Ayman Bagabas <ayman.bagabas@...il.com>,
        Mattias Jacobsson <2pi@....nu>, Takashi Iwai <tiwai@...e.de>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        kbuild test robot <lkp@...el.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] platform/x86: huawei-wmi: Stricter battery thresholds set

Check if battery thresholds are within 0 and 100.
---
 drivers/platform/x86/huawei-wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/huawei-wmi.c b/drivers/platform/x86/huawei-wmi.c
index 5837d1b8693d..26041d44286a 100644
--- a/drivers/platform/x86/huawei-wmi.c
+++ b/drivers/platform/x86/huawei-wmi.c
@@ -345,7 +345,7 @@ static int huawei_wmi_battery_set(int start, int end)
 	union hwmi_arg arg;
 	int err;
 
-	if (start < 0 || end > 100)
+	if (start < 0 || end < 0 || start > 100 || end > 100)
 		return -EINVAL;
 
 	arg.cmd = BATTERY_THRESH_SET;

base-commit: fd13c8622a5ad4f7317b64de4f6aa2de1962220e
-- 
2.21.0