Fix timeout issue

ADHamaApp/src/hama.cpp

@@ -495,9 +495,6 @@ epicsTimeStamp imageStamp;
             acquireStatusError = 0;
             setIntegerParam(ADStatus, ADStatusAcquire);
 
-            // release buffer
-			dcambuf_release(m_hdcam);
-
             status = startAcquire();
             printf("Status: %d\n", status);
             if (status != asynSuccess) {
@@ -922,7 +919,12 @@ asynStatus Hama::startAcquire(void)
 {
     int status = 0;
 
-    status = allocateBuffers(1000);
+    // release buffer
+	freeBuffers();
+
+    // allocate buffer
+    allocateBuffers(1000);
+
     // start capture
     m_err = dcamcap_start(m_hdcam, DCAMCAP_START_SNAP);
     if(failed(m_err)) {