From 5445854a68ca5a5654e8c36f9b000b8e80acf23e Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier.adi@gmail.com>
Date: Mon, 6 Apr 2009 19:00:38 -0700
Subject: [PATCH] Blackfin SPI Driver: do not check for SPI errors if DMA
 itself did not flag any

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@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/spi/spi_bfin5xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 5acec9ff01754..5ebb67b011d05 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 {
-- 
2.39.5