i2c: synquacer: fix deferred probing

The driver overrides the error codes returned by platform_get_irq() to
-ENODEV, so if it returns -EPROBE_DEFER, the driver will fail the probe
permanently instead of the deferred probing. Switch to propagating the
error codes upstream.

Fixes: 0d676a6c4390 ("i2c: add support for Socionext SynQuacer I2C controller")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

diff --git a/drivers/i2c/busses/i2c-synquacer.c b/drivers/i2c/busses/i2c-synquacer.c
index 31be181..e4026c5 100644 (file)
--- a/drivers/i2c/busses/i2c-synquacer.c
+++ b/drivers/i2c/busses/i2c-synquacer.c
@@ -578,7 +578,7 @@ static int synquacer_i2c_probe(struct platform_device *pdev)
 
        i2c->irq = platform_get_irq(pdev, 0);
        if (i2c->irq < 0)
-               return -ENODEV;
+               return i2c->irq;
 
        ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
                               0, dev_name(&pdev->dev), i2c);