brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux-brain/drivers/power
History
Krzysztof Kozlowski a6d4ac3f86 power: supply: max17042: handle fails of reading status register 
commit 54784ffa5b267f57161eb8fbb811499f22a0a0bf upstream.

Reading status register can fail in the interrupt handler.  In such
case, the regmap_read() will not store anything useful under passed
'val' variable and random stack value will be used to determine type of
interrupt.

Handle the regmap_read() failure to avoid handling interrupt type and
triggering changed power supply event based on random stack value.

Fixes: 39e7213edc ("max17042_battery: Support regmap to access device's registers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-09-22 12:26:21 +02:00
..
avs power: avs: smartreflex: no need to check return value of debugfs_create functions 2019-06-18 10:54:32 +02:00
reset power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE 2021-07-20 16:10:47 +02:00
supply power: supply: max17042: handle fails of reading status register 2021-09-22 12:26:21 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00