media: vpif: Fix runtime PM imbalance in vpif_probe

When platform_get_resource() returns an error code, a
pairing runtime PM usage counter decrement is needed
to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
index df66461..f28c1b2 100644 (file)
--- a/drivers/media/platform/davinci/vpif.c
+++ b/drivers/media/platform/davinci/vpif.c
@@ -458,6 +458,7 @@ static int vpif_probe(struct platform_device *pdev)
        res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res_irq) {
                dev_warn(&pdev->dev, "Missing IRQ resource.\n");
+               pm_runtime_put(&pdev->dev);
                return -EINVAL;
        }