Merge tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/k…

…ernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the "big" char and misc driver update for 4.9-rc1.

  Lots of little things here, all over the driver tree for subsystems
  that flow through me. Nothing major that I can discern, full details
  are in the shortlog.

  All have been in the linux-next tree with no reported issues"

* tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (144 commits)
  drivers/misc/hpilo: Changes to support new security states in iLO5 FW
  at25: fix debug and error messaging
  misc/genwqe: ensure zero initialization
  vme: fake: remove unexpected unlock in fake_master_set()
  vme: fake: mark symbols static where possible
  spmi: pmic-arb: Return an error code if sanity check fails
  Drivers: hv: get rid of id in struct vmbus_channel
  Drivers: hv: make VMBus bus ids persistent
  mcb: Add a dma_device to mcb_device
  mcb: Enable PCI bus mastering by default
  mei: stop the stall timer worker if not needed
  clk: probe common clock drivers earlier
  vme: fake: fix build for 64-bit dma_addr_t
  ttyprintk: Neaten and simplify printing
  mei: me: add kaby point device ids
  coresight: tmc: mark symbols static where possible
  coresight: perf: deal with error condition properly
  Drivers: hv: hv_util: Avoid dynamic allocation in time synch
  fpga manager: Add hardware dependency to Zynq driver
  Drivers: hv: utils: Support TimeSync version 4.0 protocol samples.
  ...

CREDITS

@@ -1944,6 +1944,11 @@ E: [email protected]
 E: [email protected]
 D: video4linux, bttv, vesafb, some scsi, misc fixes
 
+N: Hans J. Koch
+D: USERSPACE I/O, MAX6650
+D: Hans passed away in June 2016, and will be greatly missed.
+W: https://lwn.net/Articles/691000/
+
 N: Harald Koenig
 E: [email protected]
 D: XFree86 (S3), DCF77, some kernel hacks and fixes

Documentation/ABI/testing/sysfs-class-mic.txt

@@ -153,7 +153,7 @@ Description:
 
 What:		/sys/class/mic/mic(x)/heartbeat_enable
 Date:		March 2015
-KernelVersion:	3.20
+KernelVersion:	4.4
 Contact:	Ashutosh Dixit <[email protected]>
 Description:
 		The MIC drivers detect and inform user space about card crashes

Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt

@@ -1,19 +1,28 @@
 = Rockchip eFuse device tree bindings =
 
 Required properties:
-- compatible: Should be "rockchip,rockchip-efuse"
+- compatible: Should be one of the following.
+  - "rockchip,rk3066a-efuse" - for RK3066a SoCs.
+  - "rockchip,rk3188-efuse" - for RK3188 SoCs.
+  - "rockchip,rk3288-efuse" - for RK3288 SoCs.
+  - "rockchip,rk3399-efuse" - for RK3399 SoCs.
 - reg: Should contain the registers location and exact eFuse size
 - clocks: Should be the clock id of eFuse
 - clock-names: Should be "pclk_efuse"
 
+Deprecated properties:
+- compatible: "rockchip,rockchip-efuse"
+  Old efuse compatible value compatible to rk3066a, rk3188 and rk3288
+  efuses
+
 = Data cells =
 Are child nodes of eFuse, bindings of which as described in
 bindings/nvmem/nvmem.txt
 
 Example:
 
 	efuse: efuse@ffb40000 {
-		compatible = "rockchip,rockchip-efuse";
+		compatible = "rockchip,rk3288-efuse";
 		reg = <0xffb40000 0x20>;
 		#address-cells = <1>;
 		#size-cells = <1>;

Documentation/vme_api.txt

@@ -8,13 +8,14 @@ As with other subsystems within the Linux kernel, VME device drivers register
 with the VME subsystem, typically called from the devices init routine.  This is
 achieved via a call to the following function:
 
-	int vme_register_driver (struct vme_driver *driver);
+	int vme_register_driver (struct vme_driver *driver, unsigned int ndevs);
 
 If driver registration is successful this function returns zero, if an error
 occurred a negative error code will be returned.
 
 A pointer to a structure of type 'vme_driver' must be provided to the
-registration function. The structure is as follows:
+registration function. Along with ndevs, which is the number of devices your
+driver is able to support. The structure is as follows:
 
 	struct vme_driver {
 		struct list_head node;
@@ -32,8 +33,8 @@ At the minimum, the '.name', '.match' and '.probe' elements of this structure
 should be correctly set. The '.name' element is a pointer to a string holding
 the device driver's name.
 
-The '.match' function allows controlling the number of devices that need to
-be registered. The match function should return 1 if a device should be
+The '.match' function allows control over which VME devices should be registered
+with the driver. The match function should return 1 if a device should be
 probed and 0 otherwise. This example match function (from vme_user.c) limits
 the number of devices probed to one:
 
@@ -385,13 +386,13 @@ location monitor location. Each location monitor can monitor a number of
 adjacent locations:
 
 	int vme_lm_attach(struct vme_resource *res, int num,
-		void (*callback)(int));
+		void (*callback)(void *));
 
 	int vme_lm_detach(struct vme_resource *res, int num);
 
 The callback function is declared as follows.
 
-	void callback(int num);
+	void callback(void *data);
 
 
 Slot Detection

MAINTAINERS

@@ -7458,9 +7458,8 @@ F:	Documentation/hwmon/max20751
 F:	drivers/hwmon/max20751.c
 
 MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
-M:	"Hans J. Koch" <[email protected]>
 L:	[email protected]
-S:	Maintained
+S:	Orphan
 F:	Documentation/hwmon/max6650
 F:	drivers/hwmon/max6650.c
 
@@ -12418,7 +12417,6 @@ F:	fs/hostfs/
 F:	fs/hppfs/
 
 USERSPACE I/O (UIO)
-M:	"Hans J. Koch" <[email protected]>
 M:	Greg Kroah-Hartman <[email protected]>
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git

arch/arm/common/bL_switcher_dummy_if.c

@@ -56,16 +56,4 @@ static struct miscdevice bL_switcher_device = {
 	"b.L_switcher",
 	&bL_switcher_fops
 };
-
-static int __init bL_switcher_dummy_if_init(void)
-{
-	return misc_register(&bL_switcher_device);
-}
-
-static void __exit bL_switcher_dummy_if_exit(void)
-{
-	misc_deregister(&bL_switcher_device);
-}
-
-module_init(bL_switcher_dummy_if_init);
-module_exit(bL_switcher_dummy_if_exit);
+module_misc_device(bL_switcher_device);

arch/blackfin/mach-bf561/coreb.c

@@ -59,18 +59,7 @@ static struct miscdevice coreb_dev = {
 	.name  = "coreb",
 	.fops  = &coreb_fops,
 };
-
-static int __init bf561_coreb_init(void)
-{
-	return misc_register(&coreb_dev);
-}
-module_init(bf561_coreb_init);
-
-static void __exit bf561_coreb_exit(void)
-{
-	misc_deregister(&coreb_dev);
-}
-module_exit(bf561_coreb_exit);
+module_misc_device(coreb_dev);
 
 MODULE_AUTHOR("Bas Vermeulen <[email protected]>");
 MODULE_DESCRIPTION("BF561 Core B Support");

arch/um/drivers/harddog_kern.c

@@ -175,27 +175,4 @@ static struct miscdevice harddog_miscdev = {
 	.name		= "watchdog",
 	.fops		= &harddog_fops,
 };
-
-static char banner[] __initdata = KERN_INFO "UML Watchdog Timer\n";
-
-static int __init harddog_init(void)
-{
-	int ret;
-
-	ret = misc_register(&harddog_miscdev);
-
-	if (ret)
-		return ret;
-
-	printk(banner);
-
-	return 0;
-}
-
-static void __exit harddog_exit(void)
-{
-	misc_deregister(&harddog_miscdev);
-}
-
-module_init(harddog_init);
-module_exit(harddog_exit);
+module_misc_device(harddog_miscdev);

drivers/Makefile

@@ -29,6 +29,8 @@ obj-$(CONFIG_SFI)		+= sfi/
 # was used and do nothing if so
 obj-$(CONFIG_PNP)		+= pnp/
 obj-y				+= amba/
+
+obj-y				+= clk/
 # Many drivers will want to use DMA so this has to be made available
 # really early.
 obj-$(CONFIG_DMADEVICES)	+= dma/
@@ -142,8 +144,6 @@ obj-$(CONFIG_VHOST)		+= vhost/
 obj-$(CONFIG_VLYNQ)		+= vlynq/
 obj-$(CONFIG_STAGING)		+= staging/
 obj-y				+= platform/
-#common clk code
-obj-y				+= clk/
 
 obj-$(CONFIG_MAILBOX)		+= mailbox/
 obj-$(CONFIG_HWSPINLOCK)	+= hwspinlock/

drivers/bluetooth/hci_vhci.c

@@ -377,21 +377,7 @@ static struct miscdevice vhci_miscdev = {
 	.fops	= &vhci_fops,
 	.minor	= VHCI_MINOR,
 };
-
-static int __init vhci_init(void)
-{
-	BT_INFO("Virtual HCI driver ver %s", VERSION);
-
-	return misc_register(&vhci_miscdev);
-}
-
-static void __exit vhci_exit(void)
-{
-	misc_deregister(&vhci_miscdev);
-}
-
-module_init(vhci_init);
-module_exit(vhci_exit);
+module_misc_device(vhci_miscdev);
 
 module_param(amp, bool, 0644);
 MODULE_PARM_DESC(amp, "Create AMP controller device");

drivers/char/bfin-otp.c

@@ -230,45 +230,7 @@ static struct miscdevice bfin_otp_misc_device = {
 	.name     = DRIVER_NAME,
 	.fops     = &bfin_otp_fops,
 };
-
-/**
- *	bfin_otp_init - Initialize module
- *
- *	Registers the device and notifier handler. Actual device
- *	initialization is handled by bfin_otp_open().
- */
-static int __init bfin_otp_init(void)
-{
-	int ret;
-
-	stampit();
-
-	ret = misc_register(&bfin_otp_misc_device);
-	if (ret) {
-		pr_init(KERN_ERR PFX "unable to register a misc device\n");
-		return ret;
-	}
-
-	pr_init(KERN_INFO PFX "initialized\n");
-
-	return 0;
-}
-
-/**
- *	bfin_otp_exit - Deinitialize module
- *
- *	Unregisters the device and notifier handler. Actual device
- *	deinitialization is handled by bfin_otp_close().
- */
-static void __exit bfin_otp_exit(void)
-{
-	stampit();
-
-	misc_deregister(&bfin_otp_misc_device);
-}
-
-module_init(bfin_otp_init);
-module_exit(bfin_otp_exit);
+module_misc_device(bfin_otp_misc_device);
 
 MODULE_AUTHOR("Mike Frysinger <[email protected]>");
 MODULE_DESCRIPTION("Blackfin OTP Memory Interface");

drivers/char/mem.c

@@ -381,6 +381,9 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
 	char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */
 	int err = 0;
 
+	if (!pfn_valid(PFN_DOWN(p)))
+		return -EIO;
+
 	read = 0;
 	if (p < (unsigned long) high_memory) {
 		low_count = count;
@@ -509,6 +512,9 @@ static ssize_t write_kmem(struct file *file, const char __user *buf,
 	char *kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
 	int err = 0;
 
+	if (!pfn_valid(PFN_DOWN(p)))
+		return -EIO;
+
 	if (p < (unsigned long) high_memory) {
 		unsigned long to_write = min_t(unsigned long, count,
 					       (unsigned long)high_memory - p);