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-rw-r--r--locks/unix/proc_mutex.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/locks/unix/proc_mutex.c b/locks/unix/proc_mutex.c
index 1ad35de4a..2f2a1a626 100644
--- a/locks/unix/proc_mutex.c
+++ b/locks/unix/proc_mutex.c
@@ -682,6 +682,9 @@ static apr_status_t proc_mutex_flock_child_init(apr_proc_mutex_t **mutex,
memcpy(new_mutex, *mutex, sizeof *new_mutex);
new_mutex->pool = pool;
+ if (!fname) {
+ fname = (*mutex)->fname;
+ }
new_mutex->fname = apr_pstrdup(pool, fname);
rv = apr_file_open(&new_mutex->interproc, new_mutex->fname,
APR_WRITE, 0, new_mutex->pool);