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V1020. Function exited without performing epilogue actions. It is possible that there is an error.
The analyzer has detected a function body that contains a block of code starting and ending with calls to functions with opposite names, while the code between these calls contains a condition causing the function under analysis to return without calling the epilogue function.
Consider the following example:
int pthread_cond_destroy(pthread_cond_t * cond)
{
EnterCriticalSection(&ptw32_cond_list_lock);
/* ... */
if (sem_wait (&(cv->semBlockLock)) != 0)
{
return errno; // <= V1020 Warning
}
/* ... */
LeaveCriticalSection(&ptw32_cond_list_lock);
return 0;
}There are the calls to 'EnterCriticalSection' and 'LeaveCriticalSection' with the opposite words 'Enter' and 'Leave' at the beginning and end of the function body. The code in between contains a return statement with a missing call to 'LeaveCriticalSection' before it. This is what the fixed code should look like:
int pthread_cond_destroy(pthread_cond_t * cond)
{
EnterCriticalSection(&ptw32_cond_list_lock);
/* ... */
if (sem_wait (&(cv->semBlockLock)) != 0)
{
LeaveCriticalSection(&ptw32_cond_list_lock);
return errno;
}
/* ... */
LeaveCriticalSection(&ptw32_cond_list_lock);
return 0;
}This diagnostic is classified as:
You can look at examples of errors detected by the V1020 diagnostic. |
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