kernfs: fix potential null pointer dereference

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Get root safely after kn is ensureed to be not null.

Signed-off-by: Peng Wang <rocking@whu.edu.cn>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20190708151611.13242-1-rocking@whu.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Peng Wang 2019-07-08 23:16:11 +08:00 • committed by Greg Kroah-Hartman

parent 515db266a9

commit 2fd60da46d

1 changed files with 1 additions and 2 deletions

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fs/kernfs/dir.c

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