According to comment in dlm_user_request() ua should be freed
in dlm_free_lkb() after successful attach to lkb.

However ua is attached to lkb not in set_lock_args() but later,
inside request_lock().

Fixes 597d0cae0f99 ("[DLM] dlm: user locks")
Cc: sta...@kernel.org # 2.6.19

Signed-off-by: Vasily Averin <v...@virtuozzo.com>
---
 fs/dlm/lock.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 03d767b94f7b..a928ba008d7d 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -5795,20 +5795,20 @@ int dlm_user_request(struct dlm_ls *ls, struct 
dlm_user_args *ua,
                        goto out;
                }
        }
-
-       /* After ua is attached to lkb it will be freed by dlm_free_lkb().
-          When DLM_IFL_USER is set, the dlm knows that this is a userspace
-          lock and that lkb_astparam is the dlm_user_args structure. */
-
        error = set_lock_args(mode, &ua->lksb, flags, namelen, timeout_cs,
                              fake_astfn, ua, fake_bastfn, &args);
-       lkb->lkb_flags |= DLM_IFL_USER;
-
        if (error) {
+               kfree(ua->lksb.sb_lvbptr);
+               ua->lksb.sb_lvbptr = NULL;
+               kfree(ua);
                __put_lkb(ls, lkb);
                goto out;
        }
 
+       /* After ua is attached to lkb it will be freed by dlm_free_lkb().
+          When DLM_IFL_USER is set, the dlm knows that this is a userspace
+          lock and that lkb_astparam is the dlm_user_args structure. */
+       lkb->lkb_flags |= DLM_IFL_USER;
        error = request_lock(ls, lkb, name, namelen, &args);
 
        switch (error) {
-- 
2.17.1

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