Fix crash on threads being reaped before they are created

If we do that, then ->rusage_sem is never allocated.

Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/backend.c b/backend.c
index 59a14d126d2010e0df47caaeb180b57c030c086a..a93c458a9393e609371642d94e5900518327015e 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -2105,8 +2105,10 @@ int fio_backend(void)
 
        for_each_td(td, i) {
                fio_options_free(td);
-               fio_mutex_remove(td->rusage_sem);
-               td->rusage_sem = NULL;
+               if (td->rusage_sem) {
+                       fio_mutex_remove(td->rusage_sem);
+                       td->rusage_sem = NULL;
+               }
        }
 
        free_disk_util();