spi: pl022: Fix incorrect dma_unmap_sg

When mapped RX DMA entries are unmapped in an error condition when DMA
is firstly configured in the driver, the number of TX DMA entries was
passed in, which is incorrect

Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index f35f723816eacb94a0921247dfbe5dbe74611e23..fc2dd8441608fe31ad482800312fe26722c384e1 100644 (file)
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1106,7 +1106,7 @@ err_rxdesc:
                     pl022->sgt_tx.nents, DMA_TO_DEVICE);
 err_tx_sgmap:
        dma_unmap_sg(rxchan->device->dev, pl022->sgt_rx.sgl,
-                    pl022->sgt_tx.nents, DMA_FROM_DEVICE);
+                    pl022->sgt_rx.nents, DMA_FROM_DEVICE);
 err_rx_sgmap:
        sg_free_table(&pl022->sgt_tx);
 err_alloc_tx_sg: