[PATCH] cgroup: fix seq_show_option merge with legacy_name

[Kees Cook]

When seq_show_option (068acf2ee776) was merged, it did not correctly
collide with cgroup's addition of legacy_name (3e1d2eed39d8) changes. This
fixes the reported name.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
 kernel/cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a8538e443784..2cf0f79f1fc9 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1342,7 +1342,7 @@ static int cgroup_show_options(struct seq_file *seq,
 	if (root != &cgrp_dfl_root)
 		for_each_subsys(ss, ssid)
 			if (root->subsys_mask & (1 << ssid))
-				seq_show_option(seq, ss->name, NULL);
+				seq_show_option(seq, ss->legacy_name, NULL);
 	if (root->flags & CGRP_ROOT_NOPREFIX)
 		seq_puts(seq, ",noprefix");
 	if (root->flags & CGRP_ROOT_XATTR)
-- 
1.9.1


-- 
Kees Cook
Chrome OS Security
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