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: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
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
