1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index d5d7d2235163..50910d85df5a 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -583,6 +583,15 @@ static int spi_unmap_msg(struct spi_master *master, struct spi_message *msg)
         rx_dev = master->dma_rx->device->dev;
 
         list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+                /*
+                 * Restore the original value of tx_buf or rx_buf if they are
+                 * NULL.
+                 */
+                if (xfer->tx_buf == master->dummy_tx)
+                        xfer->tx_buf = NULL;
+                if (xfer->rx_buf == master->dummy_rx)
+                        xfer->rx_buf = NULL;
+
                 if (!master->can_dma(master, msg->spi, xfer))
                         continue;