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-rw-r--r--src/lib_ffi.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/lib_ffi.c b/src/lib_ffi.c
index 321de499..0f8d5013 100644
--- a/src/lib_ffi.c
+++ b/src/lib_ffi.c
@@ -545,7 +545,10 @@ LJLIB_CF(ffi_offsetof)
545 545
546LJLIB_CF(ffi_errno) 546LJLIB_CF(ffi_errno)
547{ 547{
548 setintV(L->top++, errno); 548 int err = errno;
549 if (L->top > L->base)
550 errno = ffi_checkint(L, 1);
551 setintV(L->top++, err);
549 return 1; 552 return 1;
550} 553}
551 554