soc/ti: knav_qmss_queue: Convert to platform remove callback returning void
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Mon, 25 Sep 2023 09:55:26 +0000 (11:55 +0200)
committerNishanth Menon <nm@ti.com>
Mon, 2 Oct 2023 14:11:45 +0000 (09:11 -0500)
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>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org> # qcom
Link: https://lore.kernel.org/r/20230925095532.1984344-36-u.kleine-koenig@pengutronix.de
Signed-off-by: Nishanth Menon <nm@ti.com>
drivers/soc/ti/knav_qmss_queue.c

index 0f252c2549ba3148f478412a2a0a3d740b64faf2..cea79171795761cf77e30d4363dabde44f54001c 100644 (file)
@@ -1884,17 +1884,16 @@ err:
        return ret;
 }
 
-static int knav_queue_remove(struct platform_device *pdev)
+static void knav_queue_remove(struct platform_device *pdev)
 {
        /* TODO: Free resources */
        pm_runtime_put_sync(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
-       return 0;
 }
 
 static struct platform_driver keystone_qmss_driver = {
        .probe          = knav_queue_probe,
-       .remove         = knav_queue_remove,
+       .remove_new     = knav_queue_remove,
        .driver         = {
                .name   = "keystone-navigator-qmss",
                .of_match_table = keystone_qmss_of_match,