sysfs: make __sysfs_add_one() fail if the parent isn't a directory
authorTejun Heo <tj@kernel.org>
Sat, 23 Nov 2013 22:21:47 +0000 (17:21 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 27 Nov 2013 21:14:43 +0000 (13:14 -0800)
commitae2108ad32f5ca55e9895d5597e6552be1607569
tree29efed50ed5afcd4e2e49886ad281ba50b264fa8
parentc84a3b27798dfce928b867fa1c9f3c3fd66f0a31
sysfs: make __sysfs_add_one() fail if the parent isn't a directory

Currently the kobject based interface guarantees that a parent
sysfs_dirent is always a directory; however, the planned kernfs
interface will be directly based on sysfs_dirents and the caller may
specify non-directory node as the parent.  Add an explicit check in
__sysfs_add_one() so that such attempts fail with -EINVAL.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/sysfs/dir.c