datapath-windows: Fix shared variables which use Interlocked functions
Instead of assigning a value directly to the variable use `InterlockedAdd`
with 0.
Acked-by: Shashank Ram
@@ -143,7 +143,7 @@ OvsExtAttach(NDIS_HANDLE ndisFilterHandle,
KeMemoryBarrier();
cleanup:
- gOvsInAttach = FALSE;
+ InterlockedExchange(&gOvsInAttach, 0);
if (status != NDIS_STATUS_SUCCESS) {
if (switchContext != NULL) {
OvsDeleteSwitch(switchContext);
@@ -516,7 +516,7 @@ OvsReleaseSwitchContext(POVS_SWITCH_CONTEXT switchContext)
LONG icxRef = 0;
do {
- ref = gOvsSwitchContextRefCount;
+ ref = InterlockedAdd(&gOvsSwitchContextRefCount, 0);
newRef = (0 == ref) ? 0 : ref - 1;
icxRef = InterlockedCompareExchange(&gOvsSwitchContextRefCount,
newRef,
@@ -538,7 +538,7 @@ OvsAcquireSwitchContext(VOID)
BOOLEAN ret = FALSE;
do {
- ref = gOvsSwitchContextRefCount;
+ ref = InterlockedAdd(&gOvsSwitchContextRefCount, 0);
newRef = (0 == ref) ? 0 : ref + 1;
icxRef = InterlockedCompareExchange(&gOvsSwitchContextRefCount,
newRef,
