fbdev: omapfb/sharp-ls037v7dw01: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
index d228d74f3bd53db3dac6e7f79711198f281fcde2..e37268cf8dcaec4536e11369343966beb5538aa7 100644 (file)
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c
@@ -292,7 +292,7 @@ err_reg:
        return r;
 }
 
-static int sharp_ls_remove(struct platform_device *pdev)
+static void sharp_ls_remove(struct platform_device *pdev)
 {
        struct panel_drv_data *ddata = platform_get_drvdata(pdev);
        struct omap_dss_device *dssdev = &ddata->dssdev;
@@ -304,8 +304,6 @@ static int sharp_ls_remove(struct platform_device *pdev)
        sharp_ls_disconnect(dssdev);
 
        omap_dss_put_device(in);
-
-       return 0;
 }
 
 static const struct of_device_id sharp_ls_of_match[] = {
@@ -317,7 +315,7 @@ MODULE_DEVICE_TABLE(of, sharp_ls_of_match);
 
 static struct platform_driver sharp_ls_driver = {
        .probe = sharp_ls_probe,
-       .remove = sharp_ls_remove,
+       .remove_new = sharp_ls_remove,
        .driver = {
                .name = "panel-sharp-ls037v7dw01",
                .of_match_table = sharp_ls_of_match,