Add null check before dereferencing pointer desc
Addresses-Coverity-ID: 1397997
Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
---
drivers/spi/spi-s3c64xx.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index b392cca..9f1013e 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -306,6 +306,12 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma,
desc = dmaengine_prep_slave_sg(dma->ch, sgt->sgl, sgt->nents,
dma->direction, DMA_PREP_INTERRUPT);
+ if (!desc) {
+ dev_err(&sdd->master->dev,
+ "%s:dmaengine_prep_slave_sg Failed\n", __func__);
+ return;
+ }
+
desc->callback = s3c64xx_spi_dmacb;
desc->callback_param = dma;
--
2.5.0
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