André Draszik 69ae0bb1d2 power: supply: max17042: avoid overflow when determining health ...

commit 9a44949da6 upstream.

If vmax has the default value of INT_MAX (e.g. because not specified in
DT), battery health is reported as over-voltage. This is because adding
any value to vmax (the vmax tolerance in this case) causes it to wrap
around, making it negative and smaller than the measured battery
voltage.

Avoid that by using size_add().

Fixes: edd4ab0559 ("power: max17042_battery: add HEALTH and TEMP_* properties support")
Cc: stable@vger.kernel.org
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260302-max77759-fg-v3-6-3c5f01dbda23@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2026-05-14 15:29:26 +02:00

..

reset

power: reset: nvmem-reboot-mode: respect cell size for nvmem_cell_write

2026-03-04 07:20:17 -05:00

sequencing

power: sequencing: fix missing state_lock in pwrseq_power_on() error path

2026-03-04 07:21:09 -05:00

supply

power: supply: max17042: avoid overflow when determining health

2026-05-14 15:29:26 +02:00

Kconfig

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Makefile

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