dma/xlnx-zdma: Advance the descriptor address when stopping

Advance the descriptor address when stopping the channel.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20200402134721.27863-5-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/hw/dma/xlnx-zdma.c b/hw/dma/xlnx-zdma.c
index dd893bc..e856d23 100644
--- a/hw/dma/xlnx-zdma.c
+++ b/hw/dma/xlnx-zdma.c
@@ -514,7 +514,6 @@
     if (ptype == PT_REG || src_cmd == CMD_STOP) {
         ARRAY_FIELD_DP32(s->regs, ZDMA_CH_CTRL2, EN, 0);
         zdma_set_state(s, DISABLED);
-        return;
     }
 
     if (src_cmd == CMD_HALT) {