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Blackfin SPI Driver: do not check for SPI errors if DMA itself did not flag any

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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>
This commit is contained in:
Mike Frysinger 2009-04-06 19:00:38 -07:00 committed by Linus Torvalds
parent d24bd1d0dc
commit 40a2945b97
1 changed files with 1 additions and 1 deletions
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drivers/spi/spi_bfin5xx.c
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@ -587,7 +587,7 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id)
while (!(read_STAT(drv_data) & SPIF)) while (!(read_STAT(drv_data) & SPIF))
cpu_relax(); cpu_relax();
if (spistat & RBSY) { if ((dmastat & DMA_ERR) && (spistat & RBSY)) {
msg->state = ERROR_STATE; msg->state = ERROR_STATE;
dev_err(&drv_data->pdev->dev, "dma receive: fifo/buffer overflow\n"); dev_err(&drv_data->pdev->dev, "dma receive: fifo/buffer overflow\n");
} else { } else {