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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2021-02-12 18:10:43 +0100
committerDan Williams <dan.j.williams@intel.com>2021-02-16 19:35:29 -0800
commit1f975074634a63f014e2b7e76852ee6d6005a91d (patch)
tree8fa1e0b3eacfb3299bb7384a191067114cffd155 /drivers/nvdimm
parent8409f942a1f8c28296910b7b1d60f27dd3e03162 (diff)
libnvdimm: Make remove callback return void
All drivers return 0 in their remove callback and the driver core ignores the return value of nvdimm_bus_remove() anyhow. So simplify by changing the driver remove callback to return void and return 0 unconditionally to the upper layer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210212171043.2136580-2-u.kleine-koenig@pengutronix.de Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/blk.c3
-rw-r--r--drivers/nvdimm/bus.c13
-rw-r--r--drivers/nvdimm/dimm.c4
-rw-r--r--drivers/nvdimm/pmem.c4
-rw-r--r--drivers/nvdimm/region.c4
5 files changed, 9 insertions, 19 deletions
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c
index 22e5617b2cea..8a53728e13e6 100644
--- a/drivers/nvdimm/blk.c
+++ b/drivers/nvdimm/blk.c
@@ -310,11 +310,10 @@ static int nd_blk_probe(struct device *dev)
return nsblk_attach_disk(nsblk);
}
-static int nd_blk_remove(struct device *dev)
+static void nd_blk_remove(struct device *dev)
{
if (is_nd_btt(dev))
nvdimm_namespace_detach_btt(to_nd_btt(dev));
- return 0;
}
static struct nd_device_driver nd_blk_driver = {
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index 2304c6183822..48f0985ca8a0 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -113,18 +113,17 @@ static int nvdimm_bus_remove(struct device *dev)
struct nd_device_driver *nd_drv = to_nd_device_driver(dev->driver);
struct module *provider = to_bus_provider(dev);
struct nvdimm_bus *nvdimm_bus = walk_to_nvdimm_bus(dev);
- int rc = 0;
if (nd_drv->remove) {
debug_nvdimm_lock(dev);
- rc = nd_drv->remove(dev);
+ nd_drv->remove(dev);
debug_nvdimm_unlock(dev);
}
- dev_dbg(&nvdimm_bus->dev, "%s.remove(%s) = %d\n", dev->driver->name,
- dev_name(dev), rc);
+ dev_dbg(&nvdimm_bus->dev, "%s.remove(%s)\n", dev->driver->name,
+ dev_name(dev));
module_put(provider);
- return rc;
+ return 0;
}
static void nvdimm_bus_shutdown(struct device *dev)
@@ -427,7 +426,7 @@ static void free_badrange_list(struct list_head *badrange_list)
list_del_init(badrange_list);
}
-static int nd_bus_remove(struct device *dev)
+static void nd_bus_remove(struct device *dev)
{
struct nvdimm_bus *nvdimm_bus = to_nvdimm_bus(dev);
@@ -446,8 +445,6 @@ static int nd_bus_remove(struct device *dev)
spin_unlock(&nvdimm_bus->badrange.lock);
nvdimm_bus_destroy_ndctl(nvdimm_bus);
-
- return 0;
}
static int nd_bus_probe(struct device *dev)
diff --git a/drivers/nvdimm/dimm.c b/drivers/nvdimm/dimm.c
index 94be3ae1d29f..91d9163ee303 100644
--- a/drivers/nvdimm/dimm.c
+++ b/drivers/nvdimm/dimm.c
@@ -113,7 +113,7 @@ static int nvdimm_probe(struct device *dev)
return rc;
}
-static int nvdimm_remove(struct device *dev)
+static void nvdimm_remove(struct device *dev)
{
struct nvdimm_drvdata *ndd = dev_get_drvdata(dev);
@@ -121,8 +121,6 @@ static int nvdimm_remove(struct device *dev)
dev_set_drvdata(dev, NULL);
nvdimm_bus_unlock(dev);
put_ndd(ndd);
-
- return 0;
}
static struct nd_device_driver nvdimm_driver = {
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 875076b0ea6c..062f0f22bac9 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -564,7 +564,7 @@ static int nd_pmem_probe(struct device *dev)
return pmem_attach_disk(dev, ndns);
}
-static int nd_pmem_remove(struct device *dev)
+static void nd_pmem_remove(struct device *dev)
{
struct pmem_device *pmem = dev_get_drvdata(dev);
@@ -579,8 +579,6 @@ static int nd_pmem_remove(struct device *dev)
pmem->bb_state = NULL;
}
nvdimm_flush(to_nd_region(dev->parent), NULL);
-
- return 0;
}
static void nd_pmem_shutdown(struct device *dev)
diff --git a/drivers/nvdimm/region.c b/drivers/nvdimm/region.c
index bfce87ed72ab..e0c34120df37 100644
--- a/drivers/nvdimm/region.c
+++ b/drivers/nvdimm/region.c
@@ -87,7 +87,7 @@ static int child_unregister(struct device *dev, void *data)
return 0;
}
-static int nd_region_remove(struct device *dev)
+static void nd_region_remove(struct device *dev)
{
struct nd_region *nd_region = to_nd_region(dev);
@@ -108,8 +108,6 @@ static int nd_region_remove(struct device *dev)
*/
sysfs_put(nd_region->bb_state);
nd_region->bb_state = NULL;
-
- return 0;
}
static int child_notify(struct device *dev, void *data)