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    Subject[PATCH 5.4 130/475] ASoC: rt5663: check the return value of devm_kzalloc() in rt5663_parse_dp()
    Date
    From: Jia-Ju Bai <baijiaju1990@gmail.com>

    [ Upstream commit 4d06f92f38b799295ae22c98be7a20cac3e2a1a7 ]

    The function devm_kzalloc() in rt5663_parse_dp() can fail, so its return
    value should be checked.

    Fixes: 457c25efc592 ("ASoC: rt5663: Add the function of impedance sensing")
    Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
    Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
    Link: https://lore.kernel.org/r/20220225131030.27248-1-baijiaju1990@gmail.com
    Signed-off-by: Mark Brown <broonie@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    sound/soc/codecs/rt5663.c | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c
    index 3610be1590fc..19e2f622718d 100644
    --- a/sound/soc/codecs/rt5663.c
    +++ b/sound/soc/codecs/rt5663.c
    @@ -3478,6 +3478,8 @@ static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev)
    table_size = sizeof(struct impedance_mapping_table) *
    rt5663->pdata.impedance_sensing_num;
    rt5663->imp_table = devm_kzalloc(dev, table_size, GFP_KERNEL);
    + if (!rt5663->imp_table)
    + return -ENOMEM;
    ret = device_property_read_u32_array(dev,
    "realtek,impedance_sensing_table",
    (u32 *)rt5663->imp_table, table_size);
    --
    2.34.1


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