ACPI: gracefully print null trip-point device
if acpi_bus_get_device() returns NULL, print nothing instead of "<NUL" in /proc/acpi/thermal_zone/*/trip_points Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -828,6 +828,8 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
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{
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{
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struct acpi_thermal *tz = seq->private;
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struct acpi_thermal *tz = seq->private;
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struct acpi_device *device;
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struct acpi_device *device;
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acpi_status status;
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int i = 0;
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int i = 0;
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int j = 0;
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int j = 0;
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@ -850,8 +852,10 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
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tz->trips.passive.tc1, tz->trips.passive.tc2,
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tz->trips.passive.tc1, tz->trips.passive.tc2,
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tz->trips.passive.tsp);
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tz->trips.passive.tsp);
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for (j = 0; j < tz->trips.passive.devices.count; j++) {
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for (j = 0; j < tz->trips.passive.devices.count; j++) {
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acpi_bus_get_device(tz->trips.passive.devices.handles[j], &device);
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status = acpi_bus_get_device(tz->trips.passive.devices.
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seq_printf(seq, "%4.4s ", acpi_device_bid(device));
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handles[j], &device);
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seq_printf(seq, "%4.4s ", status ? "" :
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acpi_device_bid(device));
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}
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}
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seq_puts(seq, "\n");
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seq_puts(seq, "\n");
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}
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}
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@ -863,8 +867,11 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
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i,
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i,
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KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
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KELVIN_TO_CELSIUS(tz->trips.active[i].temperature));
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for (j = 0; j < tz->trips.active[i].devices.count; j++){
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for (j = 0; j < tz->trips.active[i].devices.count; j++){
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acpi_bus_get_device(tz->trips.active[i].devices.handles[j], &device);
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status = acpi_bus_get_device(tz->trips.active[i].
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seq_printf(seq, "%4.4s ", acpi_device_bid(device));
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devices.handles[j],
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&device);
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seq_printf(seq, "%4.4s ", status ? "" :
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acpi_device_bid(device));
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}
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}
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seq_puts(seq, "\n");
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seq_puts(seq, "\n");
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}
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}
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