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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)
139 1, 139 1,
140 DMA_MEM_TO_DEV, 140 DMA_MEM_TO_DEV,
141 DMA_PREP_INTERRUPT | DMA_CTRL_ACK); 141 DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
142 if (!txdesc)
143 return NULL;
144
142 txdesc->callback = dw_spi_dma_tx_done; 145 txdesc->callback = dw_spi_dma_tx_done;
143 txdesc->callback_param = dws; 146 txdesc->callback_param = dws;
144 147
@@ -184,6 +187,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws)
184 1, 187 1,
185 DMA_DEV_TO_MEM, 188 DMA_DEV_TO_MEM,
186 DMA_PREP_INTERRUPT | DMA_CTRL_ACK); 189 DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
190 if (!rxdesc)
191 return NULL;
192
187 rxdesc->callback = dw_spi_dma_rx_done; 193 rxdesc->callback = dw_spi_dma_rx_done;
188 rxdesc->callback_param = dws; 194 rxdesc->callback_param = dws;
189 195