power: supply: bq256xx: fix some problem in bq256xx_hw_init

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smatch complains that there is a buffer overflow and clang complains
'ret' is never read.

Smatch error:
drivers/power/supply/bq256xx_charger.c:1578 bq256xx_hw_init() error:
buffer overflow 'bq256xx_watchdog_time' 4 <= 4

Clang static checker:
Value stored to 'ret' is never read.

Add check for buffer overflow and error code from regmap_update_bits().

Fixes: 32e4978bb9 ("power: supply: bq256xx: Introduce the BQ256XX charger driver")
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20231116041822.1378758-1-suhui@nfschina.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

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This commit is contained in:

Su Hui 2023-11-16 12:18:23 +08:00 • committed by Sebastian Reichel

parent 054eb23775

commit b55d073e65

1 changed files with 4 additions and 1 deletions

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drivers/power/supply/bq256xx_charger.c

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