diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 8eaadbaf8ffa5281d6db62f9f9152c783e0c69c8..0f704484ae1d6b7a4d6fc7abb08fb3f268d1dce1 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;