pcmcia: sa1100: 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>
Link: https://lore.kernel.org/r/6473afe67fc5c320a8184d0871a8561f7685e265.1702051073.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/pcmcia/sa1100_generic.c b/drivers/pcmcia/sa1100_generic.c
index 89d4ba58c891354c17bd49ec1f5a1736b92b57e1..ccb219c3876170fe7e6580c791472a7e716aa461 100644 (file)
--- a/drivers/pcmcia/sa1100_generic.c
+++ b/drivers/pcmcia/sa1100_generic.c
@@ -158,20 +158,18 @@ static int sa11x0_drv_pcmcia_probe(struct platform_device *pdev)
        return sa11xx_drv_pcmcia_add_one(skt);
 }
 
-static int sa11x0_drv_pcmcia_remove(struct platform_device *dev)
+static void sa11x0_drv_pcmcia_remove(struct platform_device *dev)
 {
        struct soc_pcmcia_socket *skt;
 
        if (dev->id == -1) {
                sa11x0_drv_pcmcia_legacy_remove(dev);
-               return 0;
+               return;
        }
 
        skt = platform_get_drvdata(dev);
 
        soc_pcmcia_remove_one(skt);
-
-       return 0;
 }
 
 static struct platform_driver sa11x0_pcmcia_driver = {
@@ -179,7 +177,7 @@ static struct platform_driver sa11x0_pcmcia_driver = {
                .name           = "sa11x0-pcmcia",
        },
        .probe          = sa11x0_drv_pcmcia_probe,
-       .remove         = sa11x0_drv_pcmcia_remove,
+       .remove_new     = sa11x0_drv_pcmcia_remove,
 };
 
 /* sa11x0_pcmcia_init()