Commit f7a99451 authored by Al Viro's avatar Al Viro
Browse files

no need to protect against put_user_ns(NULL) 



it's a no-op

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 1f58bb18

arch/x86/kernel/cpu/resctrl/rdtgroup.c

+1 −2
Original line number Diff line number Diff line
@@ -2108,7 +2108,6 @@ static int rdt_init_fs_context(struct fs_context *fc) 
	ctx->kfc.magic = RDTGROUP_SUPER_MAGIC;

	fc->fs_private = &ctx->kfc;

	fc->ops = &rdt_fs_context_ops;

	if (fc->user_ns)

	put_user_ns(fc->user_ns);

	fc->user_ns = get_user_ns(&init_user_ns);

	fc->global = true;

fs/sysfs/mount.c

+1 −2
Original line number Diff line number Diff line
@@ -72,7 +72,6 @@ static int sysfs_init_fs_context(struct fs_context *fc) 
	fc->fs_private = kfc;

	fc->ops = &sysfs_fs_context_ops;

	if (netns) {

		if (fc->user_ns)

		put_user_ns(fc->user_ns);

		fc->user_ns = get_user_ns(netns->user_ns);

	}

kernel/cgroup/cgroup.c

+1 −2
Original line number Diff line number Diff line
@@ -2184,7 +2184,6 @@ static int cgroup_init_fs_context(struct fs_context *fc) 
		fc->ops = &cgroup_fs_context_ops;

	else

		fc->ops = &cgroup1_fs_context_ops;

	if (fc->user_ns)

	put_user_ns(fc->user_ns);

	fc->user_ns = get_user_ns(ctx->ns->user_ns);

	fc->global = true;