python
diff --git a/‎Python/sysmodule.c‎
Lines changed: 2 additions & 2 deletions b/‎Python/sysmodule.c‎
Lines changed: 2 additions & 2 deletions
@@ -2515,12 +2515,12 @@ PyAPI_FUNC(int) PyUnstable_CopyPerfMapFile(const char* parent_filename) {
             return ret;
         }
     }
-    char buf[4096];
-    PyThread_acquire_lock(perf_map_state.map_lock, 1);
     FILE* from = fopen(parent_filename, "r");
     if (!from) {
         return -1;
     }
+    char buf[4096];
+    PyThread_acquire_lock(perf_map_state.map_lock, 1);
     int fflush_result = 0, result = 0;
     while (1) {
         size_t bytes_read = fread(buf, 1, sizeof(buf), from);
Original file line number	Diff line number	Diff line change
@@ -2515,12 +2515,12 @@ PyAPI_FUNC(int) PyUnstable_CopyPerfMapFile(const char* parent_filename) {
2515	2515	return ret;
2516	2516	}
2517	2517	}
2518		- char buf[4096];
2519		- PyThread_acquire_lock(perf_map_state.map_lock, 1);
2520	2518	FILE* from = fopen(parent_filename, "r");
2521	2519	if (!from) {
2522	2520	return -1;
2523	2521	}
	2522	+ char buf[4096];
	2523	+ PyThread_acquire_lock(perf_map_state.map_lock, 1);
2524	2524	int fflush_result = 0, result = 0;
2525	2525	while (1) {
2526	2526	size_t bytes_read = fread(buf, 1, sizeof(buf), from);