platform_get_irq() cannot return the value 0.
If it returns -EPROBE_DEFER, we need to populate the error code upwards
to retry probing once the irq handler is ready.
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
drivers/media/platform/broadcom/bcm2835-unicam.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/broadcom/bcm2835-unicam.c b/drivers/media/platform/broadcom/bcm2835-unicam.c
index bd2bbb53070e..2a3a27ac70ba 100644
--- a/drivers/media/platform/broadcom/bcm2835-unicam.c
+++ b/drivers/media/platform/broadcom/bcm2835-unicam.c
@@ -2660,9 +2660,10 @@ static int unicam_probe(struct platform_device *pdev)
}
ret = platform_get_irq(pdev, 0);
- if (ret <= 0) {
+ if (ret < 0) {
dev_err(&pdev->dev, "No IRQ resource\n");
- ret = -EINVAL;
+ if (ret != -EPROBE_DEFER)
+ ret = -EINVAL;
goto err_unicam_put;
}
--
2.44.0.769.g3c40516874-goog
