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Date: Sun, 6 Feb 2011 01:48:01 +0100 From: Lars-Peter Clausen <lars@...afoo.de> To: Anton Vorontsov <cbouatmailru@...il.com> Cc: Rodolfo Giometti <giometti@...ux.it>, Grazvydas Ignotas <notasas@...il.com>, linux-kernel@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de> Subject: [PATCH 04/14] POWER: bq27x00: Return -ENODEV for properties if the battery is not present This patch changes get_property callback of the bq27x00 battery to return -ENODEV for properties other then the PROP_PRESENT if the battery is not present. The power subsystem core expects a driver to behave that way. Signed-off-by: Lars-Peter Clausen <lars@...afoo.de> --- drivers/power/bq27x00_battery.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index 1b06134..9f16666 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -252,16 +252,21 @@ static int bq27x00_battery_get_property(struct power_supply *psy, { int ret = 0; struct bq27x00_device_info *di = to_bq27x00_device_info(psy); + int voltage = bq27x00_battery_voltage(di); + + if (psp != POWER_SUPPLY_PROP_PRESENT && voltage <= 0) + return -ENODEV; switch (psp) { case POWER_SUPPLY_PROP_STATUS: ret = bq27x00_battery_status(di, val); break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: + val->intval = voltage; + break; case POWER_SUPPLY_PROP_PRESENT: - val->intval = bq27x00_battery_voltage(di); if (psp == POWER_SUPPLY_PROP_PRESENT) - val->intval = val->intval <= 0 ? 0 : 1; + val->intval = voltage <= 0 ? 0 : 1; break; case POWER_SUPPLY_PROP_CURRENT_NOW: val->intval = bq27x00_battery_current(di); -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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