Yang YingliangandGreg Kroah-Hartman 61df25c41b i2c: mux: reg: check return value after calling platform_get_resource() ...

[ Upstream commit 2d47b79d2b ]

It will cause null-ptr-deref in resource_size(), if platform_get_resource()
returns NULL, move calling resource_size() after devm_ioremap_resource() that
will check 'res' to avoid null-ptr-deref.
And use devm_platform_get_and_ioremap_resource() to simplify code.

Fixes: b3fdd32799 ("i2c: mux: Add register-based mux i2c-mux-reg")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-01-14 10:16:00 +01:00

..

i2c-arb-gpio-challenge.c

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i2c-demux-pinctrl.c

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i2c-mux-gpio.c

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i2c-mux-gpmux.c

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i2c-mux-ltc4306.c

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i2c-mux-mlxcpld.c

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i2c-mux-pca954x.c

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i2c-mux-pca9541.c

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i2c-mux-pinctrl.c

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i2c-mux-reg.c

i2c: mux: reg: check return value after calling platform_get_resource()

2023-01-14 10:16:00 +01:00

Kconfig

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Makefile

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