Hi Javier,
Am 23.03.2016 um 17:15 schrieb Javier Martinez Canillas:
> The same struct device_node * is used for looking up the I2C sensor, OF
> graph endpoint and port. So the reference count is incremented but not
> decremented for the endpoint and port nodes.
>
> Fix this by having separate pointers for each node looked up.
>
> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
[...]
> diff --git a/drivers/media/platform/exynos4-is/fimc-is.c b/drivers/media/platform/exynos4-is/fimc-is.c
> index 979c388ebf60..0b04a5d25187 100644
> --- a/drivers/media/platform/exynos4-is/fimc-is.c
> +++ b/drivers/media/platform/exynos4-is/fimc-is.c
> @@ -165,6 +165,7 @@ static int fimc_is_parse_sensor_config(struct fimc_is *is, unsigned int index,
> struct device_node *node)
> {
> struct fimc_is_sensor *sensor = &is->sensor[index];
> + struct device_node *ep, *port;
> u32 tmp = 0;
> int ret;
>
> @@ -175,16 +176,18 @@ static int fimc_is_parse_sensor_config(struct fimc_is *is, unsigned int index,
> return -EINVAL;
> }
>
> - node = of_graph_get_next_endpoint(node, NULL);
> - if (!node)
> + ep = of_graph_get_next_endpoint(node, NULL);
> + if (!ep)
> return -ENXIO;
>
> - node = of_graph_get_remote_port(node);
> - if (!node)
> + port = of_graph_get_remote_port(ep);
> + of_node_put(ep);
> + if (!port)
> return -ENXIO;
>
> /* Use MIPI-CSIS channel id to determine the ISP I2C bus index. */
> - ret = of_property_read_u32(node, "reg", &tmp);
> + ret = of_property_read_u32(port, "reg", &tmp);
> + of_node_put(port);
> if (ret < 0) {
> dev_err(&is->pdev->dev, "reg property not found at: %s\n",
> node->full_name);
port->full_name. You'll need to defer the of_node_put(port) then.
Regards,
Andreas
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