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Input: synaptics-rmi4 - fail probing if memory allocation for "phys" fails 

[ Upstream commit bc4996184d56cfaf56d3811ac2680c8a0e2af56e ]

While input core can work with input->phys set to NULL userspace might
depend on it, so better fail probing if allocation fails. The system must
be in a pretty bad shape for it to happen anyway.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20240117073124.143636-1-chentao@kylinos.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kunwu Chan 2024-01-18 11:37:59 -08:00 committed by Greg Kroah-Hartman
parent d6b2fe2db1
commit eafaec40d0
1 changed files with 5 additions and 1 deletions
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6
drivers/input/rmi4/rmi_driver.c
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@ -1196,7 +1196,11 @@ static int rmi_driver_probe(struct device *dev)
}
rmi_driver_set_input_params(rmi_dev, data->input);
data->input->phys = devm_kasprintf(dev, GFP_KERNEL,
"%s/input0", dev_name(dev));
"%s/input0", dev_name(dev));
if (!data->input->phys) {
retval = -ENOMEM;
goto err;
}
}
retval = rmi_init_functions(data);