Add clFlush() to backend_session_update_mp() and backend_session_update_mp_rl()

src/backend.c

@@ -15649,6 +15649,8 @@ int backend_session_update_mp (hashcat_ctx_t *hashcat_ctx)
 
       if (hc_clEnqueueWriteBuffer (hashcat_ctx, device_param->opencl_command_queue, device_param->opencl_d_root_css_buf,   CL_FALSE, 0, device_param->size_root_css,   mask_ctx->root_css_buf,   0, NULL, NULL) == -1) return -1;
       if (hc_clEnqueueWriteBuffer (hashcat_ctx, device_param->opencl_command_queue, device_param->opencl_d_markov_css_buf, CL_FALSE, 0, device_param->size_markov_css, mask_ctx->markov_css_buf, 0, NULL, NULL) == -1) return -1;
+
+      if (hc_clFlush (hashcat_ctx, device_param->opencl_command_queue) == -1) return -1;
     }
   }
 
@@ -15720,6 +15722,8 @@ int backend_session_update_mp_rl (hashcat_ctx_t *hashcat_ctx, const u32 css_cnt_
 
       if (hc_clEnqueueWriteBuffer (hashcat_ctx, device_param->opencl_command_queue, device_param->opencl_d_root_css_buf,   CL_FALSE, 0, device_param->size_root_css,   mask_ctx->root_css_buf,   0, NULL, NULL) == -1) return -1;
       if (hc_clEnqueueWriteBuffer (hashcat_ctx, device_param->opencl_command_queue, device_param->opencl_d_markov_css_buf, CL_FALSE, 0, device_param->size_markov_css, mask_ctx->markov_css_buf, 0, NULL, NULL) == -1) return -1;
+
+      if (hc_clFlush (hashcat_ctx, device_param->opencl_command_queue) == -1) return -1;
     }
   }