OMAP: DSS2: check for manager when enabling display

[~andy/linux] / drivers / video / omap2 / dss / dsi.c

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 7adbbeb84334f3a9ec857c8f7d00b394b2082f6c..12da2fbd79317e4b43104d64c0b27b017e740626 100644 (file)
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4211,6 +4211,12 @@ int omapdss_dsi_display_enable(struct omap_dss_device *dssdev)
 
        mutex_lock(&dsi->lock);
 
+       if (dssdev->manager == NULL) {
+               DSSERR("failed to enable display: no manager\n");
+               r = -ENODEV;
+               goto err_start_dev;
+       }
+
        r = omap_dss_start_device(dssdev);
        if (r) {
                DSSERR("failed to start device\n");