Merge tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the big char/misc driver update for 5.11-rc1.

  Continuing the tradition of previous -rc1 pulls, there seems to be
  more and more tiny driver subsystems flowing through this tree.

  Lots of different things, all of which have been in linux-next for a
  while with no reported issues:

   - extcon driver updates

   - habannalab driver updates

   - mei driver updates

   - uio driver updates

   - binder fixes and features added

   - soundwire driver updates

   - mhi bus driver updates

   - phy driver updates

   - coresight driver updates

   - fpga driver updates

   - speakup driver updates

   - slimbus driver updates

   - various small char and misc driver updates"

* tag 'char-misc-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (305 commits)
  extcon: max77693: Fix modalias string
  extcon: fsa9480: Support TI TSU6111 variant
  extcon: fsa9480: Rewrite bindings in YAML and extend
  dt-bindings: extcon: add binding for TUSB320
  extcon: Add driver for TI TUSB320
  slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
  siox: Make remove callback return void
  siox: Use bus_type functions for probe, remove and shutdown
  spmi: Add driver shutdown support
  spmi: fix some coding style issues at the spmi core
  spmi: get rid of a warning when built with W=1
  uio: uio_hv_generic: use devm_kzalloc() for private data alloc
  uio: uio_fsl_elbc_gpcm: use device-managed allocators
  uio: uio_aec: use devm_kzalloc() for uio_info object
  uio: uio_cif: use devm_kzalloc() for uio_info object
  uio: uio_netx: use devm_kzalloc() for or uio_info object
  uio: uio_mf624: use devm_kzalloc() for uio_info object
  uio: uio_sercos3: use device-managed functions for simple allocs
  uio: uio_dmem_genirq: finalize conversion of probe to devm_ handlers
  uio: uio_dmem_genirq: convert simple allocations to device-managed
  ...

1 files changed, 25 insertions, 25 deletions

diff --git a/drivers/siox/siox-core.c b/drivers/siox/siox-core.c
index f8c08fb9891d..1794ff0106bc 100644
--- a/drivers/siox/siox-core.c
+++ b/drivers/siox/siox-core.c
@@ -512,41 +512,47 @@ static int siox_match(struct device *dev, struct device_driver *drv)
 	return 1;
 }
 
-static struct bus_type siox_bus_type = {
-	.name = "siox",
-	.match = siox_match,
-};
-
-static int siox_driver_probe(struct device *dev)
+static int siox_probe(struct device *dev)
 {
 	struct siox_driver *sdriver = to_siox_driver(dev->driver);
 	struct siox_device *sdevice = to_siox_device(dev);
-	int ret;
 
-	ret = sdriver->probe(sdevice);
-	return ret;
+	return sdriver->probe(sdevice);
 }
 
-static int siox_driver_remove(struct device *dev)
+static int siox_remove(struct device *dev)
 {
 	struct siox_driver *sdriver =
 		container_of(dev->driver, struct siox_driver, driver);
 	struct siox_device *sdevice = to_siox_device(dev);
-	int ret;
 
-	ret = sdriver->remove(sdevice);
-	return ret;
+	if (sdriver->remove)
+		sdriver->remove(sdevice);
+
+	return 0;
 }
 
-static void siox_driver_shutdown(struct device *dev)
+static void siox_shutdown(struct device *dev)
 {
-	struct siox_driver *sdriver =
-		container_of(dev->driver, struct siox_driver, driver);
 	struct siox_device *sdevice = to_siox_device(dev);
+	struct siox_driver *sdriver;
+
+	if (!dev->driver)
+		return;
 
-	sdriver->shutdown(sdevice);
+	sdriver = container_of(dev->driver, struct siox_driver, driver);
+	if (sdriver->shutdown)
+		sdriver->shutdown(sdevice);
 }
 
+static struct bus_type siox_bus_type = {
+	.name = "siox",
+	.match = siox_match,
+	.probe = siox_probe,
+	.remove = siox_remove,
+	.shutdown = siox_shutdown,
+};
+
 static ssize_t active_show(struct device *dev,
 			   struct device_attribute *attr, char *buf)
 {
@@ -882,7 +888,8 @@ int __siox_driver_register(struct siox_driver *sdriver, struct module *owner)
 	if (unlikely(!siox_is_registered))
 		return -EPROBE_DEFER;
 
-	if (!sdriver->set_data && !sdriver->get_data) {
+	if (!sdriver->probe ||
+	    (!sdriver->set_data && !sdriver->get_data)) {
 		pr_err("Driver %s doesn't provide needed callbacks\n",
 		       sdriver->driver.name);
 		return -EINVAL;
@@ -891,13 +898,6 @@ int __siox_driver_register(struct siox_driver *sdriver, struct module *owner)
 	sdriver->driver.owner = owner;
 	sdriver->driver.bus = &siox_bus_type;
 
-	if (sdriver->probe)
-		sdriver->driver.probe = siox_driver_probe;
-	if (sdriver->remove)
-		sdriver->driver.remove = siox_driver_remove;
-	if (sdriver->shutdown)
-		sdriver->driver.shutdown = siox_driver_shutdown;
-
 	ret = driver_register(&sdriver->driver);
 	if (ret)
 		pr_err("Failed to register siox driver %s (%d)\n",