[PATCH 2/2] spi: spi-fsl-dspi: Initialize completion before possible interrupt

[Krzysztof Kozlowski]

If interrupt fires early, the dspi_interrupt() could complete
(dspi->xfer_done) before its initialization happens.

Fixes: 4f5ee75ea171 ("spi: spi-fsl-dspi: Replace interruptible wait queue with 
a simple completion")
Cc: <sta...@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k...@kernel.org>
---
 drivers/spi/spi-fsl-dspi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 57e7a626ba00..efb63ed9fd86 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -1385,6 +1385,8 @@ static int dspi_probe(struct platform_device *pdev)
                goto poll_mode;
        }
 
+       init_completion(&dspi->xfer_done);
+
        ret = request_threaded_irq(dspi->irq, dspi_interrupt, NULL,
                                   IRQF_SHARED, pdev->name, dspi);
        if (ret < 0) {
@@ -1392,8 +1394,6 @@ static int dspi_probe(struct platform_device *pdev)
                goto out_clk_put;
        }
 
-       init_completion(&dspi->xfer_done);
-
 poll_mode:
 
        if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE) {
-- 
2.7.4