diff --git a/libavcodec/pthread_frame.c b/libavcodec/pthread_frame.c
index aaf576d63cbc28fcfd16a19094e078a1b698c1e8..46c6292253d441b1a0b4c9d41013c01f6fc9e666 100644
--- a/libavcodec/pthread_frame.c
+++ b/libavcodec/pthread_frame.c
@@ -566,12 +566,11 @@ void ff_thread_report_progress(ThreadFrame *f, int n, int field)
 
     p = f->owner[field]->internal->thread_ctx;
 
+    pthread_mutex_lock(&p->progress_mutex);
     if (f->owner[field]->debug&FF_DEBUG_THREADS)
         av_log(f->owner[field], AV_LOG_DEBUG,
                "%p finished %d field %d\n", progress, n, field);
 
-    pthread_mutex_lock(&p->progress_mutex);
-
     atomic_store_explicit(&progress[field], n, memory_order_release);
 
     pthread_cond_broadcast(&p->progress_cond);
@@ -589,11 +588,10 @@ void ff_thread_await_progress(ThreadFrame *f, int n, int field)
 
     p = f->owner[field]->internal->thread_ctx;
 
+    pthread_mutex_lock(&p->progress_mutex);
     if (f->owner[field]->debug&FF_DEBUG_THREADS)
         av_log(f->owner[field], AV_LOG_DEBUG,
                "thread awaiting %d field %d from %p\n", n, field, progress);
-
-    pthread_mutex_lock(&p->progress_mutex);
     while (atomic_load_explicit(&progress[field], memory_order_relaxed) < n)
         pthread_cond_wait(&p->progress_cond, &p->progress_mutex);
     pthread_mutex_unlock(&p->progress_mutex);