On Sat, May 26, 2018 at 08:24:25PM +0300, Laurent Pinchart wrote:
> The dpi_init_port() and sdi_init_port() functions can return errors but
> their return value is ignored. This prevents both probe failures and
> probe deferral from working correctly. Propagate the errors up the call
> stack.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
-- Sebastian
> drivers/gpu/drm/omapdrm/dss/dss.c | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
> index abd45b08f3a1..59b238f03437 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.c
> @@ -1183,7 +1183,8 @@ static int dss_init_ports(struct dss_device *dss)
> struct platform_device *pdev = dss->pdev;
> struct device_node *parent = pdev->dev.of_node;
> struct device_node *port;
> - int i;
> + unsigned int i;
> + int r;
>
> for (i = 0; i < dss->feat->num_ports; i++) {
> port = of_graph_get_port_by_id(parent, i);
> @@ -1192,11 +1193,17 @@ static int dss_init_ports(struct dss_device *dss)
>
> switch (dss->feat->ports[i]) {
> case OMAP_DISPLAY_TYPE_DPI:
> - dpi_init_port(dss, pdev, port, dss->feat->model);
> + r = dpi_init_port(dss, pdev, port, dss->feat->model);
> + if (r)
> + return r;
> break;
> +
> case OMAP_DISPLAY_TYPE_SDI:
> - sdi_init_port(dss, pdev, port);
> + r = sdi_init_port(dss, pdev, port);
> + if (r)
> + return r;
> break;
> +
> default:
> break;
> }
> --
> Regards,
>
> Laurent Pinchart
>
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