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-rw-r--r--Python/perf_trampoline.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Python/perf_trampoline.c b/Python/perf_trampoline.c
index 540b650..750ba18 100644
--- a/Python/perf_trampoline.c
+++ b/Python/perf_trampoline.c
@@ -247,7 +247,7 @@ new_code_arena(void)
mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS,
-1, // fd (not used here)
0); // offset (not used here)
- if (!memory) {
+ if (memory == MAP_FAILED) {
PyErr_SetFromErrno(PyExc_OSError);
PyErr_FormatUnraisable("Failed to create new mmap for perf trampoline");
perf_status = PERF_STATUS_FAILED;