spi/bfin_spi: use dma_disable_irq_nosync() in irq handler
Using disable_irq() on the IRQ whose handler we are currently executing in
can easily lead to a hang. So use the nosync variant here.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index b3450b7..18b313a 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -547,7 +547,7 @@
dev_dbg(&drv_data->pdev->dev,
"disable dma channel irq%d\n",
drv_data->dma_channel);
- dma_disable_irq(drv_data->dma_channel);
+ dma_disable_irq_nosync(drv_data->dma_channel);
return IRQ_HANDLED;
}