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i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()

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[ Upstream commit 7c0195fa9a ]

devm_kstrdup() returns pointer to allocated string on success,
NULL on failure. So it is better to check the return value of it.

Fixes: e35478eac0 ("i2c: mux: demux-pinctrl: run properly with multiple instances")
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Xiaoke Wang
2022-03-03 20:39:14 +08:00
committed by Greg Kroah-Hartman
parent 9910b1411e
commit 1aa39eee57
1 changed files with 4 additions and 0 deletions
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4
drivers/i2c/muxes/i2c-demux-pinctrl.c
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@@ -243,6 +243,10 @@ static int i2c_demux_pinctrl_probe(struct platform_device *pdev)
props[i].name = devm_kstrdup(&pdev->dev, "status", GFP_KERNEL);
props[i].value = devm_kstrdup(&pdev->dev, "ok", GFP_KERNEL);
if (!props[i].name || !props[i].value) {
err = -ENOMEM;
goto err_rollback;
}
props[i].length = 3;
of_changeset_init(&priv->chan[i].chgset);