From 8029968e2ae02361f376751459dc644b45970b40 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 5 Feb 2021 23:28:39 +0100 Subject: device-dax: Properly handle drivers without remove callback MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If all resources are allocated in .probe() using devm_ functions it might make sense to not provide a .remove() callback. Then the right thing is to just return success. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20210205222842.34896-3-uwe@kleine-koenig.org Signed-off-by: Dan Williams --- drivers/dax/bus.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c index 2b29728ec2fd..ef53da441c5d 100644 --- a/drivers/dax/bus.c +++ b/drivers/dax/bus.c @@ -178,8 +178,12 @@ static int dax_bus_remove(struct device *dev) { struct dax_device_driver *dax_drv = to_dax_drv(dev->driver); struct dev_dax *dev_dax = to_dev_dax(dev); + int ret = 0; - return dax_drv->remove(dev_dax); + if (dax_drv->remove) + ret = dax_drv->remove(dev_dax); + + return ret; } static struct bus_type dax_bus_type = { -- cgit v1.2.3-70-g09d2