diff options
Diffstat (limited to 'drivers/video/omap2/dss/display.c')
| -rw-r--r-- | drivers/video/omap2/dss/display.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c index 809676473a99..0daf3e37d597 100644 --- a/drivers/video/omap2/dss/display.c +++ b/drivers/video/omap2/dss/display.c @@ -158,15 +158,24 @@ void omapdss_unregister_display(struct omap_dss_device *dssdev) } EXPORT_SYMBOL(omapdss_unregister_display); -void omap_dss_get_device(struct omap_dss_device *dssdev) +struct omap_dss_device *omap_dss_get_device(struct omap_dss_device *dssdev) { - get_device(dssdev->dev); + if (!try_module_get(dssdev->owner)) + return NULL; + + if (get_device(dssdev->dev) == NULL) { + module_put(dssdev->owner); + return NULL; + } + + return dssdev; } EXPORT_SYMBOL(omap_dss_get_device); void omap_dss_put_device(struct omap_dss_device *dssdev) { put_device(dssdev->dev); + module_put(dssdev->owner); } EXPORT_SYMBOL(omap_dss_put_device); |