summaryrefslogtreecommitdiff
path: root/fs/ocfs2
diff options
context:
space:
mode:
authorShang XiaoJing <shangxiaojing@huawei.com>2022-11-01 19:15:33 +0800
committerAndrew Morton <akpm@linux-foundation.org>2022-11-18 13:55:09 -0800
commit13b6269dd022aaa69ca8d1df374ab327504121cf (patch)
tree318750dbc71f63560794ba57d0343d7b2be135ed /fs/ocfs2
parent9629c2b9057b9c7d770e0f1aa5546f4f702dbcef (diff)
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>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/stackglue.c8
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)