i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()
authorXiaoke Wang <xkernel.wang@foxmail.com>
Thu, 3 Mar 2022 12:39:14 +0000 (20:39 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 6 Oct 2023 12:56:43 +0000 (14:56 +0200)
commit976c8c1c40731c7579f7f52646cae86f17711703
tree35c4246ffca7e5aba9b75ee72c2328bd569e24cb
parent50a096aab61f6a50903de750b0d694aa60fe6a38
i2c: mux: demux-pinctrl: check the return value of devm_kstrdup()

[ 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