From: Al Viro Date: Fri, 9 Dec 2011 04:20:45 +0000 (-0500) Subject: procfs: fix a vfsmount longterm reference leak X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git procfs: fix a vfsmount longterm reference leak kern_mount() doesn't pair with plain mntput()... Signed-off-by: Al Viro --- 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); }