4.19-stable review patch. If anyone has any objections, please let me know.
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From: Xiaoke Wang xkernel.wang@foxmail.com
[ Upstream commit 7c0195fa9a9e263df204963f88a22b21688ffb66 ]
devm_kstrdup() returns pointer to allocated string on success, NULL on failure. So it is better to check the return value of it.
Fixes: e35478eac030 ("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 --- drivers/i2c/muxes/i2c-demux-pinctrl.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c b/drivers/i2c/muxes/i2c-demux-pinctrl.c index 1b99d0b928a0d..092ebc08549ff 100644 --- a/drivers/i2c/muxes/i2c-demux-pinctrl.c +++ b/drivers/i2c/muxes/i2c-demux-pinctrl.c @@ -244,6 +244,10 @@ 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);