OMAPDSS: RFBI: Add error handling for rfbi_probe_pdata

Add proper error handling for rfbi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the RFBI driver to be
probed again later if a resource was missing.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index e55e411..1a17dd1 100644 (file)
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -977,7 +977,7 @@ static struct omap_dss_device *rfbi_find_dssdev(struct platform_device *pdev)
        return def_dssdev;
 }
 
-static void rfbi_probe_pdata(struct platform_device *rfbidev)
+static int rfbi_probe_pdata(struct platform_device *rfbidev)
 {
        struct omap_dss_device *plat_dssdev;
        struct omap_dss_device *dssdev;
@@ -986,11 +986,11 @@ static void rfbi_probe_pdata(struct platform_device *rfbidev)
        plat_dssdev = rfbi_find_dssdev(rfbidev);
 
        if (!plat_dssdev)
-               return;
+               return 0;
 
        dssdev = dss_alloc_and_init_device(&rfbidev->dev);
        if (!dssdev)
-               return;
+               return -ENOMEM;
 
        dss_copy_device_pdata(dssdev, plat_dssdev);
 
@@ -998,7 +998,7 @@ static void rfbi_probe_pdata(struct platform_device *rfbidev)
        if (r) {
                DSSERR("device %s init failed: %d\n", dssdev->name, r);
                dss_put_device(dssdev);
-               return;
+               return r;
        }
 
        r = omapdss_output_set_device(&rfbi.output, dssdev);
@@ -1006,7 +1006,7 @@ static void rfbi_probe_pdata(struct platform_device *rfbidev)
                DSSERR("failed to connect output to new device: %s\n",
                                dssdev->name);
                dss_put_device(dssdev);
-               return;
+               return r;
        }
 
        r = dss_add_device(dssdev);
@@ -1014,8 +1014,10 @@ static void rfbi_probe_pdata(struct platform_device *rfbidev)
                DSSERR("device %s register failed: %d\n", dssdev->name, r);
                omapdss_output_unset_device(&rfbi.output);
                dss_put_device(dssdev);
-               return;
+               return r;
        }
+
+       return 0;
 }
 
 static void rfbi_init_output(struct platform_device *pdev)
@@ -1091,7 +1093,12 @@ static int omap_rfbihw_probe(struct platform_device *pdev)
 
        rfbi_init_output(pdev);
 
-       rfbi_probe_pdata(pdev);
+       r = rfbi_probe_pdata(pdev);
+       if (r) {
+               rfbi_uninit_output(pdev);
+               pm_runtime_disable(&pdev->dev);
+               return r;
+       }
 
        return 0;