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| author | Yufan Chen <ericterminal@gmail.com> | 2026-02-22 18:40:35 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-02-23 14:52:16 +0000 |
| commit | 4b73231b2a61c4142a027613d277a19c484dfcc3 (patch) | |
| tree | f80fee5f9709195f2a899c4957aa50c7e5652f4c /drivers/regulator | |
| parent | be704107e79696e855aa41e901a926039b6d2410 (diff) | |
| download | linux-next-4b73231b2a61c4142a027613d277a19c484dfcc3.tar.gz linux-next-4b73231b2a61c4142a027613d277a19c484dfcc3.zip | |
regulator: tps65185: check devm_kzalloc() result in probe
tps65185_probe() dereferences the allocation result immediately by using data->regmap. If devm_kzalloc() returns NULL under memory pressure, this leads to a NULL pointer dereference.
Add the missing allocation check and return -ENOMEM on failure.
Signed-off-by: Yufan Chen <ericterminal@gmail.com>
Link: https://patch.msgid.link/20260222104035.90790-1-ericterminal@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/tps65185.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/regulator/tps65185.c b/drivers/regulator/tps65185.c index 3286c9ab33d0..786622d8d598 100644 --- a/drivers/regulator/tps65185.c +++ b/drivers/regulator/tps65185.c @@ -332,6 +332,9 @@ static int tps65185_probe(struct i2c_client *client) int i; data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + data->regmap = devm_regmap_init_i2c(client, ®map_config); if (IS_ERR(data->regmap)) return dev_err_probe(&client->dev, PTR_ERR(data->regmap), |