spi: pl022: Fix incorrect dma_unmap_sg

commit 3ffa6158f002e096d28ede71be4e0ee8ab20baa2 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index f1f0a587e4fcd596d0df0f6de579ed954c17ebbc..dbd576dbd15abc4b12b57def0ff980c2f91443ac 100644 (file)
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1074,7 +1074,7 @@ 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: