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fuse: readdirplus: fix dentry leak
Niels de Vos authored

In case d_lookup() returns a dentry with d_inode == NULL, the dentry is not
returned with dput(). This results in triggering a BUG() in
shrink_dcache_for_umount_subtree():

  BUG: Dentry ...{i=0,n=...} still in use (1) [unmount of fuse fuse]

[SzM: need to d_drop() as well]
Reported-by: default avatarJustin Clift <jclift@redhat.com>
Signed-off-by: default avatarNiels de Vos <ndevos@redhat.com>
Signed-off-by: default avatarMiklos Szeredi <mszeredi@suse.cz>
Tested-by: default avatarBrian Foster <bfoster@redhat.com>
Tested-by: default avatarNiels de Vos <ndevos@redhat.com>
CC: stable@vger.kernel.org
53ce9a33
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