soc/ti: wkup_m3_ipc: 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>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org> # qcom
Link: https://lore.kernel.org/r/20230925095532.1984344-40-u.kleine-koenig@pengutronix.de
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/drivers/soc/ti/wkup_m3_ipc.c b/drivers/soc/ti/wkup_m3_ipc.c
index 3aff106fc11a00bcb79a39b0a9eec3944afa3dc4..6a1c6b34c414afc1715b07afcc26bcb83a2f806d 100644 (file)
--- a/drivers/soc/ti/wkup_m3_ipc.c
+++ b/drivers/soc/ti/wkup_m3_ipc.c
@@ -713,7 +713,7 @@ err_free_mbox:
        return ret;
 }
 
-static int wkup_m3_ipc_remove(struct platform_device *pdev)
+static void wkup_m3_ipc_remove(struct platform_device *pdev)
 {
        wkup_m3_ipc_dbg_destroy(m3_ipc_state);
 
@@ -723,8 +723,6 @@ static int wkup_m3_ipc_remove(struct platform_device *pdev)
        rproc_put(m3_ipc_state->rproc);
 
        m3_ipc_state = NULL;
-
-       return 0;
 }
 
 static int __maybe_unused wkup_m3_ipc_suspend(struct device *dev)
@@ -760,7 +758,7 @@ MODULE_DEVICE_TABLE(of, wkup_m3_ipc_of_match);
 
 static struct platform_driver wkup_m3_ipc_driver = {
        .probe = wkup_m3_ipc_probe,
-       .remove = wkup_m3_ipc_remove,
+       .remove_new = wkup_m3_ipc_remove,
        .driver = {
                .name = "wkup_m3_ipc",
                .of_match_table = wkup_m3_ipc_of_match,