[PATCH 09/20] Blackfin SPI Driver: do not check for SPI errors if DMA itself did not flag any

[Bryan Wu]

From: Mike Frysinger <vapier.adi@xxxxxxxxx>

We only need to check SPI error when DMA failes, cause that
is the DMA IRQ handling routine.

Signed-off-by: Mike Frysinger <vapier.adi@xxxxxxxxx>
Signed-off-by: Bryan Wu <cooloney@xxxxxxxxxx>
---
 drivers/spi/spi_bfin5xx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 7652da8..f7a4b5b 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -587,7 +587,7 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id)
 	while (!(read_STAT(drv_data) & SPIF))
 		cpu_relax();
 
-	if (spistat & RBSY) {
+	if ((dmastat & DMA_ERR) && (spistat & RBSY)) {
 		msg->state = ERROR_STATE;
 		dev_err(&drv_data->pdev->dev, "dma receive: fifo/buffer overflow\n");
 	} else {
-- 
1.5.6.3
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