nfs: nfs4clinet: check the return value of kstrdup()
authorXiaoke Wang <xkernel.wang@foxmail.com>
Thu, 16 Dec 2021 17:01:33 +0000 (01:01 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 16 Feb 2022 11:54:18 +0000 (12:54 +0100)
commitc5619c510f04d7ceaa0136cd5fab9960c3d23b65
treec279a5205a43de6317372ccd66ca0fe9750ae2c1
parentdb053bdece3aa812d4da8c3aa2f15560618b9cc4
nfs: nfs4clinet: check the return value of kstrdup()

[ Upstream commit fbd2057e5329d3502a27491190237b6be52a1cb6 ]

kstrdup() returns NULL when some internal memory errors happen, it is
better to check the return value of it so to catch the memory error in
time.

Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/nfs/nfs4client.c