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| author |   Sven Neumann <s.neumann@raumfeld.com> | 2010-11-12 11:36:22 +0100 |
|---|---|---|
| committer |   Anton Vorontsov <cbouatmailru@gmail.com> | 2010-11-18 16:56:15 +0300 |
| commit | 86af95039b69a90db15294eb1f9c147f1df0a8ea (patch) | |
| tree | da3a54667bdea3e0d8eb7dea9322c0970d59b27d /drivers/power | |
| parent | Linux 2.6.37-rc2 (diff) | |
| download | linux-dev-86af95039b69a90db15294eb1f9c147f1df0a8ea.tar.xz linux-dev-86af95039b69a90db15294eb1f9c147f1df0a8ea.zip | |
ds2760_battery: Fix calculation of time_to_empty_now
A check against division by zero was modified in commit b0525b48.
Since this change time_to_empty_now is always reported as zero
while the battery is discharging and as a negative value while
the battery is charging. This is because current is negative while
the battery is discharging.
Fix the check introduced by commit b0525b48 so that time_to_empty_now
is reported correctly during discharge and as zero while charging.
Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Acked-by: Daniel Mack <daniel@caiaq.de>
Cc: stable@kernel.org [2.6.32..2.6.36]
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/ds2760_battery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c index b3c01c16a164..11e1ac508e57 100644 --- a/drivers/power/ds2760_battery.c +++ b/drivers/power/ds2760_battery.c @@ -212,7 +212,7 @@ static int ds2760_battery_read_status(struct ds2760_device_info *di) if (di->rem_capacity > 100) di->rem_capacity = 100; - if (di->current_uA >= 100L) + if (di->current_uA < -100L) di->life_sec = -((di->accum_current_uAh - di->empty_uAh) * 36L) / (di->current_uA / 100L); else |