# NCryptFreeBuffer with Key storage provider (KSP)
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The `NCryptFreeBuffer` function releases a block of memory that was allocated by the Key Storage Provider (KSP).

## Parameters
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 `pvInput` [in]   
 The address of the memory to released. 

## Return Value
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The function returns a status code to indicate success or failure.

Common return codes include:


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| Return code | Description | 
| --- | --- | 
| ERROR\_SUCCESS | The operation completed successfully. | 
| NTE\_FAIL | The operation couldn't complete. |