Merge 4.9.270 into android-4.9-q

Changes in 4.9.270
	openrisc: Fix a memory leak
	RDMA/rxe: Clear all QP fields if creation failed
	scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword()
	ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
	cifs: fix memory leak in smb2_copychunk_range
	ALSA: line6: Fix racy initialization of LINE6 MIDI
	ALSA: usb-audio: Validate MS endpoint descriptors
	ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro
	Revert "ALSA: sb8: add a check for request_region"
	Revert "rapidio: fix a NULL pointer dereference when create_workqueue() fails"
	rapidio: handle create_workqueue() failure
	xen-pciback: reconfigure also from backend watch handler
	dm snapshot: fix crash with transient storage and zero chunk size
	Revert "video: hgafb: fix potential NULL pointer dereference"
	Revert "net: stmicro: fix a missing check of clk_prepare"
	Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"
	Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe"
	Revert "video: imsttfb: fix potential NULL pointer dereferences"
	Revert "ecryptfs: replace BUG_ON with error handling code"
	Revert "gdrom: fix a memory leak bug"
	cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom
	cdrom: gdrom: initialize global variable at init time
	Revert "rtlwifi: fix a potential NULL pointer dereference"
	Revert "qlcnic: Avoid potential NULL pointer dereference"
	Revert "niu: fix missing checks of niu_pci_eeprom_read"
	ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read()
	net: stmicro: handle clk_prepare() failure during init
	net: rtlwifi: properly check for alloc_workqueue() failure
	leds: lp5523: check return value of lp5xx_read and jump to cleanup code
	qlcnic: Add null check after calling netdev_alloc_skb
	video: hgafb: fix potential NULL pointer dereference
	vgacon: Record video mode changes with VT_RESIZEX
	vt: Fix character height handling with VT_RESIZEX
	tty: vt: always invoke vc->vc_sw->con_resize callback
	iio: tsl2583: Fix division by a zero lux_val
	video: hgafb: correctly handle card detect failure during probe
	Bluetooth: SMP: Fail if remote and local public keys are identical
	Linux 4.9.270

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I18503de7fead3b4759390f5eac09fc3ce5722a50