Merge 3.18.91 into android-3.18

Changes in 3.18.91
	ACPI: APEI / ERST: Fix missing error handling in erst_reader()
	crypto: mcryptd - protect the per-CPU queue with a lock
	mfd: twl4030-audio: Fix sibling-node lookup
	mfd: twl6040: Fix child-node lookup
	ALSA: rawmidi: Avoid racy info ioctl via ctl device
	ALSA: usb-audio: Fix the missing ctl name suffix at parsing SU
	PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()
	parisc: Hide Diva-built-in serial aux and graphics card
	KVM: X86: Fix load RFLAGS w/o the fixed bit
	powerpc/perf: Dereference BHRB entries safely
	net: mvneta: clear interface link status on port disable
	tracing: Remove extra zeroing out of the ring buffer page
	tracing: Fix possible double free on failure of allocating trace buffer
	tracing: Fix crash when it fails to alloc ring buffer
	ring-buffer: Mask out the info bits when returning buffer page length
	ASoC: twl4030: fix child-node lookup
	kbuild: add '-fno-stack-check' to kernel build options
	ipv4: igmp: guard against silly MTU values
	ipv6: mcast: better catch silly mtu values
	net: igmp: Use correct source address on IGMPv3 reports
	netlink: Add netns check on taps
	net: qmi_wwan: add Sierra EM7565 1199:9091
	tcp md5sig: Use skb's saddr when replying to an incoming segment
	tg3: Fix rx hang on MTU change with 5717/5719
	net: mvmdio: disable/unprepare clocks in EPROBE_DEFER case
	sctp: Replace use of sockets_allocated with specified macro.
	net: ipv4: fix for a race condition in raw_sendmsg
	USB: serial: option: add support for Telit ME910 PID 0x1101
	usb: Add device quirk for Logitech HD Pro Webcam C925e
	usb: add RESET_RESUME for ELSA MicroLink 56K
	usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201
	n_tty: fix EXTPROC vs ICANON interaction with TIOCINQ (aka FIONREAD)
	Linux 3.18.91

Change-Id: I64c5bd6d9812db482f230aed397d4b62027f26c7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>