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authorLinus Torvalds <torvalds@linux-foundation.org>2019-11-15 08:44:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-11-15 08:44:08 -0800
commitb4c0800e4285f96900b7aa4a13ae724fc1205f65 (patch)
tree44bca2a39f0648584956f1cf5b1bf23a458c58cf /kernel/cgroup
parent96b95eff4a591dbac582c2590d067e356a18aacb (diff)
parent762c69685ff7ad5ad7fee0656671e20a0c9c864d (diff)
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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs fixes from Al Viro: "Assorted fixes all over the place; some of that is -stable fodder, some regressions from the last window" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable ecryptfs: fix unlink and rmdir in face of underlying fs modifications audit_get_nd(): don't unlock parent too early exportfs_decode_fh(): negative pinned may become positive without the parent locked cgroup: don't put ERR_PTR() into fc->root autofs: fix a leak in autofs_expire_indirect() aio: Fix io_pgetevents() struct __compat_aio_sigset layout fs/namespace.c: fix use-after-free of mount in mnt_warn_timestamp_expiry()
Diffstat (limited to 'kernel/cgroup')
-rw-r--r--kernel/cgroup/cgroup.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 080561bb8a4b..ef4242e5d4bc 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2119,11 +2119,12 @@ int cgroup_do_get_tree(struct fs_context *fc)
nsdentry = kernfs_node_dentry(cgrp->kn, sb);
dput(fc->root);
- fc->root = nsdentry;
if (IS_ERR(nsdentry)) {
- ret = PTR_ERR(nsdentry);
deactivate_locked_super(sb);
+ ret = PTR_ERR(nsdentry);
+ nsdentry = NULL;
}
+ fc->root = nsdentry;
}
if (!ctx->kfc.new_sb_created)