Merge Linux 4.4.294 kernel

Changes in 4.4.294: (53 commits)
        staging: ion: Prevent incorrect reference counting behavour
        USB: serial: option: add Telit LE910S1 0x9200 composition
        USB: serial: option: add Fibocom FM101-GL variants
        usb: hub: Fix usb enumeration issue due to address0 race
        usb: hub: Fix locking issues with address0_mutex
        binder: fix test regression due to sender_euid change
        ALSA: ctxfi: Fix out-of-range access
        staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
        xen: don't continue xenstore initialization in case of errors
        xen: detect uninitialized xenbus in xenbus_init
        ARM: dts: BCM5301X: Add interrupt properties to GPIO node
        ASoC: topology: Add missing rwsem around snd_ctl_remove() calls
        net: ieee802154: handle iftypes as u32
        NFSv42: Don't fail clone() unless the OP_CLONE operation failed
        ARM: socfpga: Fix crash with CONFIG_FORTIRY_SOURCE
        scsi: mpt3sas: Fix kernel panic during drive powercycle test
        tcp_cubic: fix spurious Hystart ACK train detections for not-cwnd-limited flows
        tracing: Check pid filtering when creating events
        hugetlbfs: flush TLBs correctly after huge_pmd_unshare
        proc/vmcore: fix clearing user buffer by properly using clear_user()
        NFC: add NCI_UNREG flag to eliminate the race
        fuse: fix page stealing
        fuse: release pipe buf after last use
        shm: extend forced shm destroy to support objects from several IPC nses
        xen: sync include/xen/interface/io/ring.h with Xen's newest version
        xen/blkfront: read response from backend only once
        xen/blkfront: don't take local copy of a request from the ring page
        xen/blkfront: don't trust the backend response data blindly
        xen/netfront: read response from backend only once
        xen/netfront: don't read data from request on the ring page
        xen/netfront: disentangle tx_skb_freelist
        xen/netfront: don't trust the backend response data blindly
        tty: hvc: replace BUG_ON() with negative return value
        hugetlb: take PMD sharing into account when flushing tlb/caches
        net: return correct error code
        platform/x86: thinkpad_acpi: Fix WWAN device disabled issue after S3 deep
        s390/setup: avoid using memblock_enforce_memory_limit
        scsi: iscsi: Unblock session then wake up error handler
        net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
        net: ethernet: dec: tulip: de4x5: fix possible array overflows in type3_infoblock()
        kprobes: Limit max data_size of the kretprobe instances
        sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
        sata_fsl: fix warning in remove_proc_entry when rmmod sata_fsl
        fs: add fget_many() and fput_many()
        fget: check that the fd still exists after getting a ref to it
        natsemi: xtensa: fix section mismatch warnings
        net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
        siphash: use _unaligned version by default
        parisc: Fix "make install" on newer debian releases
        vgacon: Propagate console boot parameters before calling `vc_resize'
        tty: serial: msm_serial: Deactivate RX DMA for polling support
        serial: pl011: Add ACPI SBSA UART match id
        Linux 4.4.294