Merge 4.9.248 into android-4.9-q

Changes in 4.9.248
	net/af_iucv: set correct sk_protocol for child sockets
	rose: Fix Null pointer dereference in rose_send_frame()
	usbnet: ipheth: fix connectivity with iOS 14
	bonding: wait for sysfs kobject destruction before freeing struct slave
	netfilter: bridge: reset skb->pkt_type after NF_INET_POST_ROUTING traversal
	ibmvnic: Ensure that SCRQ entry reads are correctly ordered
	ibmvnic: Fix TX completion error handling
	net/x25: prevent a couple of overflows
	cxgb3: fix error return code in t3_sge_alloc_qset()
	net: pasemi: fix error return code in pasemi_mac_open()
	net/mlx5: Fix wrong address reclaim when command interface is down
	dt-bindings: net: correct interrupt flags in examples
	Input: xpad - support Ardwiino Controllers
	Input: i8042 - add ByteSpeed touchpad to noloop table
	spi: Fix controller unregister order harder
	RDMA/i40iw: Address an mmap handler exploit in i40iw
	btrfs: sysfs: init devices outside of the chunk_mutex
	pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output
	pinctrl: baytrail: Fix pin being driven low for a while on gpiod_get(..., GPIOD_OUT_HIGH)
	vlan: consolidate VLAN parsing code and limit max parsing depth
	usb: gadget: f_fs: Use local copy of descriptors for userspace copy
	USB: serial: kl5kusb105: fix memleak on open
	USB: serial: ch341: add new Product ID for CH341A
	USB: serial: ch341: sort device-id entries
	USB: serial: option: add Fibocom NL668 variants
	USB: serial: option: add support for Thales Cinterion EXS82
	tty: Fix ->pgrp locking in tiocspgrp()
	ALSA: hda/realtek - Add new codec supported for ALC897
	ALSA: hda/generic: Add option to enforce preferred_dacs pairs
	tty: Fix ->session locking
	ftrace: Fix updating FTRACE_FL_TRAMP
	cifs: fix potential use-after-free in cifs_echo_request()
	i2c: imx: Fix reset of I2SR_IAL flag
	i2c: imx: Check for I2SR_IAL after every byte
	iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs
	spi: Introduce device-managed SPI controller allocation
	spi: bcm-qspi: Fix use-after-free on unbind
	spi: bcm2835: Fix use-after-free on unbind
	spi: bcm2835: Release the DMA channel if probe fails after dma_init
	tracing: Fix userstacktrace option for instances
	gfs2: check for empty rgrp tree in gfs2_ri_update
	i2c: qup: Fix error return code in qup_i2c_bam_schedule_desc()
	Input: i8042 - fix error return code in i8042_setup_aux()
	x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes
	Linux 4.9.248

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I79239057c72e2a11bbbfd85634e716c9e6195b2a