regulator: fp9931: Add missing memory allocation check

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Add a check for devm_kzalloc failure in fp9931_probe to prevent a
null pointer dereference.

Fixes: 12d821bd13d4 ("regulator: Add FP9931/JD9930 driver")
Signed-off-by: Felix Gu <gu_0233@qq.com>
Link: https://patch.msgid.link/tencent_5FCF2108621C51007E5526A7C60A5CC1F306@qq.com
Signed-off-by: Mark Brown <broonie@kernel.org>

authored by

Felix Gu and committed by

Mark Brown 2 months ago e3b76494 24d479d2

1 changed file

expand all

drivers

regulator

fp9931.c

drivers/regulator/fp9931.c

··· 439 439 int i; 440 440 441 441 data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); 442 + if (!data) 443 + return -ENOMEM; 444 + 442 445 data->regmap = devm_regmap_init_i2c(client, &regmap_config); 443 446 if (IS_ERR(data->regmap)) 444 447 return dev_err_probe(&client->dev, PTR_ERR(data->regmap),