linux-kernel - [PATCH] kernel: cgroup: fix compile warning:

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Date:	Thu, 12 May 2016 12:34:38 +0300
From:	Felipe Balbi <felipe.balbi@...ux.intel.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Li Zefan <lizefan@...wei.com>,
	Johannes Weiner <hannes@...xchg.org>, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Felipe Balbi <felipe.balbi@...ux.intel.com>
Subject: [PATCH] kernel: cgroup: fix compile warning:

commit 4f41fc59620f ("cgroup, kernfs: make mountinfo
 show properly scoped path for cgroup namespaces")
 added the following compile warning:

kernel/cgroup.c: In function ‘cgroup_show_path’:
kernel/cgroup.c:1634:15: warning: unused variable ‘ret’ [-Wunused-variable]
  int len = 0, ret = 0;
               ^
fix it.

Fixes: 4f41fc59620f ("cgroup, kernfs: make mountinfo
	show properly scoped path for cgroup
	namespaces")
Signed-off-by: Felipe Balbi <felipe.balbi@...ux.intel.com>
---
 kernel/cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index afea39eb7649..86cb5c6e8932 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1631,7 +1631,7 @@ static int rebind_subsystems(struct cgroup_root *dst_root, u16 ss_mask)
 static int cgroup_show_path(struct seq_file *sf, struct kernfs_node *kf_node,
 			    struct kernfs_root *kf_root)
 {
-	int len = 0, ret = 0;
+	int len = 0;
 	char *buf = NULL;
 	struct cgroup_root *kf_cgroot = cgroup_root_from_kf(kf_root);
 	struct cgroup *ns_cgroup;
-- 
2.8.2

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