advapi32: Use standard refcount in CRYPTPROV.

Signed-off-by: Serge Gautherie <winehq-git_serge_180711@gautherie.fr> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

advapi32: Use standard refcount in CRYPTPROV.
62df03af · Serge Gautherie · Alexandre Julliard · 9cc8b501 · 62df03af · 62df03af
Commit 62df03af authored Mar 17, 2020 by Serge Gautherie Committed by Alexandre Julliard Mar 17, 2020
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crypt.c dlls/advapi32/crypt.c +2 -3

crypt.h dlls/advapi32/crypt.h +1 -1

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--- a/dlls/advapi32/crypt.c
+++ b/dlls/advapi32/crypt.c
@@ -636,7 +636,7 @@ BOOL WINAPI CryptContextAddRef (HCRYPTPROV hProv, DWORD *pdwReserved, DWORD dwFl
 		return FALSE;
 	}

-	pProv->refcount++;
+	InterlockedIncrement(&pProv->refcount);
 	return TRUE;
 }

@@ -672,8 +672,7 @@ BOOL WINAPI CryptReleaseContext (HCRYPTPROV hProv, DWORD dwFlags)
 		return FALSE;
 	}

-	pProv->refcount--;
-	if (pProv->refcount <= 0) 
+	if (InterlockedDecrement(&pProv->refcount) == 0)
 	{
 		ret = pProv->pFuncs->pCPReleaseContext(pProv->hPrivate, dwFlags);
 		pProv->dwMagic = 0;

--- a/dlls/advapi32/crypt.h
+++ b/dlls/advapi32/crypt.h
@@ -63,7 +63,7 @@ typedef struct tagPROVFUNCS
 typedef struct tagCRYPTPROV
 {
 	DWORD dwMagic;
-	UINT refcount;
+	LONG refcount;
 	HMODULE hModule;
 	PPROVFUNCS pFuncs;
        HCRYPTPROV hPrivate;  /*CSP's handle - Should not be given to application under any circumstances!*/