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-rw-r--r--drivers/misc/thinkpad_acpi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 623d36fd8dbe..f74d7d600d83 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -2853,6 +2853,8 @@ static int thermal_get_sensor(int idx, s32 *value)
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
return -EIO;
+ if (t > 127 || t < -127)
+ t = TP_EC_THERMAL_TMP_NA;
*value = t * 1000;
return 0;
}