---
description: "Learn more about: Warning C26167"
title: Warning C26167
ms.date: 11/04/2016
f1_keywords: ["C26167"]
helpviewer_keywords: ["C26167"]
ms.assetid: 5a3d767f-31fa-45e0-8c9b-1aa776acaa45
---
# Warning C26167

> Possibly releasing unheld lock '*lock*' in function '*func*'.

Warning C26167 resembles warning [C26117](../code-quality/c26117.md) except that the confidence level is lower. For example, the function may contain annotation errors.

## Examples

The following code will generate C26167 and C26110.

```cpp
typedef struct _DATA {
    CRITICAL_SECTION cs;
} DATA;

_Releases_lock_(p->cs) void Leave(DATA* p) {
    LeaveCriticalSection(&p->cs); // OK
}
void ReleaseUnheldLock(DATA* p) { // Warning C26167
    int i = 0;
    Leave(p); // Warning C26110
}
```

The following code will correct these warnings.

```cpp
typedef struct _DATA {
    CRITICAL_SECTION cs;
} DATA;

_Releases_lock_(p->cs) void Leave(DATA* p) {
    LeaveCriticalSection( &p->cs );
}

void ReleaseUnheldLock( DATA* p ) {
    EnterCriticalSection( &p->cs );
    int i = 0;
    Leave(p);
}
```