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@xxxxxxxxxxxxxx>
---
drivers/tty/serial/sunzilog.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index d3b5e864b727..c99289c6c8f8 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1513,7 +1513,7 @@ static void zs_remove_one(struct uart_sunzilog_port *up)
uart_remove_one_port(&sunzilog_reg, &up->port);
}
-static int zs_remove(struct platform_device *op)
+static void zs_remove(struct platform_device *op)
{
struct uart_sunzilog_port *up = platform_get_drvdata(op);
struct zilog_layout __iomem *regs;
@@ -1523,8 +1523,6 @@ static int zs_remove(struct platform_device *op)
regs = sunzilog_chip_regs[up[0].port.line / 2];
of_iounmap(&op->resource[0], regs, sizeof(struct zilog_layout));
-
- return 0;
}
static const struct of_device_id zs_match[] = {
@@ -1541,7 +1539,7 @@ static struct platform_driver zs_driver = {
.of_match_table = zs_match,
},
.probe = zs_probe,
- .remove = zs_remove,
+ .remove_new = zs_remove,
};
static int __init sunzilog_init(void)
--
2.42.0
