remoteproc: st: 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 (mostly) ignored
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.

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>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20230504194453.1150368-17-u.kleine-koenig@pengutronix.de
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
index 3f1b8963639f0fd00bd9d91827a60797b1810f89..e3ce01d98b4c7d0fd710bfab1e8ca62839a656a8 100644 (file)
--- a/drivers/remoteproc/st_remoteproc.c
+++ b/drivers/remoteproc/st_remoteproc.c
@@ -448,7 +448,7 @@ free_rproc:
        return ret;
 }
 
-static int st_rproc_remove(struct platform_device *pdev)
+static void st_rproc_remove(struct platform_device *pdev)
 {
        struct rproc *rproc = platform_get_drvdata(pdev);
        struct st_rproc *ddata = rproc->priv;
@@ -462,13 +462,11 @@ static int st_rproc_remove(struct platform_device *pdev)
                mbox_free_channel(ddata->mbox_chan[i]);
 
        rproc_free(rproc);
-
-       return 0;
 }
 
 static struct platform_driver st_rproc_driver = {
        .probe = st_rproc_probe,
-       .remove = st_rproc_remove,
+       .remove_new = st_rproc_remove,
        .driver = {
                .name = "st-rproc",
                .of_match_table = of_match_ptr(st_rproc_match),