diff options
| author | Shang XiaoJing <shangxiaojing@huawei.com> | 2022-11-01 14:15:33 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-11-19 00:55:09 +0300 |
| commit | 13b6269dd022aaa69ca8d1df374ab327504121cf (patch) | |
| tree | 318750dbc71f63560794ba57d0343d7b2be135ed | |
| parent | 9629c2b9057b9c7d770e0f1aa5546f4f702dbcef (diff) | |
| download | linux-13b6269dd022aaa69ca8d1df374ab327504121cf.tar.xz | |
ocfs2: fix memory leak in ocfs2_stack_glue_init()
ocfs2_table_header should be free in ocfs2_stack_glue_init() if
ocfs2_sysfs_init() failed, otherwise kmemleak will report memleak.
BUG: memory leak
unreferenced object 0xffff88810eeb5800 (size 128):
comm "modprobe", pid 4507, jiffies 4296182506 (age 55.888s)
hex dump (first 32 bytes):
c0 40 14 a0 ff ff ff ff 00 00 00 00 01 00 00 00 .@..............
01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000001e59e1cd>] __register_sysctl_table+0xca/0xef0
[<00000000c04f70f7>] 0xffffffffa0050037
[<000000001bd12912>] do_one_initcall+0xdb/0x480
[<0000000064f766c9>] do_init_module+0x1cf/0x680
[<000000002ba52db0>] load_module+0x6441/0x6f20
[<000000009772580d>] __do_sys_finit_module+0x12f/0x1c0
[<00000000380c1f22>] do_syscall_64+0x3f/0x90
[<000000004cf473bc>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Link: https://lkml.kernel.org/r/41651ca1-432a-db34-eb97-d35744559de1@linux.alibaba.com
Fixes: 3878f110f71a ("ocfs2: Move the hb_ctl_path sysctl into the stack glue.")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | fs/ocfs2/stackglue.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 317126261523..a8d5ca98fa57 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -669,6 +669,8 @@ static struct ctl_table_header *ocfs2_table_header; static int __init ocfs2_stack_glue_init(void) { + int ret; + strcpy(cluster_stack_name, OCFS2_STACK_PLUGIN_O2CB); ocfs2_table_header = register_sysctl("fs/ocfs2/nm", ocfs2_nm_table); @@ -678,7 +680,11 @@ static int __init ocfs2_stack_glue_init(void) return -ENOMEM; /* or something. */ } - return ocfs2_sysfs_init(); + ret = ocfs2_sysfs_init(); + if (ret) + unregister_sysctl_table(ocfs2_table_header); + + return ret; } static void __exit ocfs2_stack_glue_exit(void) |