diff options
Diffstat (limited to 'drivers/platform/x86/lenovo/thinkpad_acpi.c')
| -rw-r--r-- | drivers/platform/x86/lenovo/thinkpad_acpi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/platform/x86/lenovo/thinkpad_acpi.c b/drivers/platform/x86/lenovo/thinkpad_acpi.c index f9c736777908..8982d92dfd97 100644 --- a/drivers/platform/x86/lenovo/thinkpad_acpi.c +++ b/drivers/platform/x86/lenovo/thinkpad_acpi.c @@ -9525,14 +9525,16 @@ static int tpacpi_battery_get(int what, int battery, int *ret) { switch (what) { case THRESHOLD_START: - if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery)) + if (!battery_info.batteries[battery].start_support || + ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery))) return -ENODEV; /* The value is in the low 8 bits of the response */ *ret = *ret & 0xFF; return 0; case THRESHOLD_STOP: - if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery)) + if (!battery_info.batteries[battery].stop_support || + ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery))) return -ENODEV; /* Value is in lower 8 bits */ *ret = *ret & 0xFF; |