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path: root/drivers/spi/spi-dw-mid.c
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Diffstat (limited to 'drivers/spi/spi-dw-mid.c')
-rw-r--r--drivers/spi/spi-dw-mid.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index a0197fd4e95c..3ce39d10fafb 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -139,6 +139,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws)
1,
DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if (!txdesc)
+ return NULL;
+
txdesc->callback = dw_spi_dma_tx_done;
txdesc->callback_param = dws;
@@ -184,6 +187,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws)
1,
DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+ if (!rxdesc)
+ return NULL;
+
rxdesc->callback = dw_spi_dma_rx_done;
rxdesc->callback_param = dws;