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| author | Al Viro <viro@zeniv.linux.org.uk> | 2011-12-09 05:20:45 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2011-12-09 06:40:19 +0100 |
| commit | 905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 (patch) | |
| tree | 1c3cf1c0df2b72eca3f13f2f3d9057e754b7fb50 /fs/proc | |
| parent | Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/... (diff) | |
| download | linux-905ad269c55fc62bee3da29f7b1d1efeba8aa1e1.tar.xz linux-905ad269c55fc62bee3da29f7b1d1efeba8aa1e1.zip | |
procfs: fix a vfsmount longterm reference leak
kern_mount() doesn't pair with plain mntput()...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/root.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/proc/root.c b/fs/proc/root.c index 9a8a2b77b874..03102d978180 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -91,20 +91,18 @@ static struct file_system_type proc_fs_type = { void __init proc_root_init(void) { - struct vfsmount *mnt; int err; proc_init_inodecache(); err = register_filesystem(&proc_fs_type); if (err) return; - mnt = kern_mount_data(&proc_fs_type, &init_pid_ns); - if (IS_ERR(mnt)) { + err = pid_ns_prepare_proc(&init_pid_ns); + if (err) { unregister_filesystem(&proc_fs_type); return; } - init_pid_ns.proc_mnt = mnt; proc_symlink("mounts", NULL, "self/mounts"); proc_net_init(); @@ -209,5 +207,5 @@ int pid_ns_prepare_proc(struct pid_namespace *ns) void pid_ns_release_proc(struct pid_namespace *ns) { - mntput(ns->proc_mnt); + kern_unmount(ns->proc_mnt); } |