3510d8203b
Changes in 4.9.288 ALSA: seq: Fix a potential UAF by wrong private_free call order s390: fix strrchr() implementation xhci: Enable trust tx length quirk for Fresco FL11 USB controller cb710: avoid NULL pointer subtraction efi/cper: use stack buffer for error record decoding efi: Change down_interruptible() in virt_efi_reset_system() to down_trylock() Input: xpad - add support for another USB ID of Nacon GC-100 USB: serial: qcserial: add EM9191 QDL support USB: serial: option: add Telit LE910Cx composition 0x1204 nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells iio: adc128s052: Fix the error handling path of 'adc128_probe()' iio: light: opt3001: Fixed timeout error when 0 lux iio: ssp_sensors: add more range checking in ssp_parse_dataframe() iio: ssp_sensors: fix error code in ssp_print_mcu_debug() net: arc: select CRC32 net: korina: select CRC32 net: encx24j600: check error in devm_regmap_init_encx24j600 ethernet: s2io: fix setting mac address during resume nfc: fix error handling of nfc_proto_register() NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() NFC: digital: fix possible memory leak in digital_in_send_sdd_req() pata_legacy: fix a couple uninitialized variable bugs drm/msm: Fix null pointer dereference on pointer edp drm/msm/dsi: fix off by one in dsi_bus_clk_enable error handling r8152: select CRC32 and CRYPTO/CRYPTO_HASH/CRYPTO_SHA256 xtensa: xtfpga: use CONFIG_USE_OF instead of CONFIG_OF xtensa: xtfpga: Try software restart before simulating CPU reset NFSD: Keep existing listeners on portlist error netfilter: ipvs: make global sysctl readonly in non-init netns NIOS2: irqflags: rename a redefined register name can: rcar_can: fix suspend/resume can: peak_usb: pcan_usb_fd_decode_status(): fix back to ERROR_ACTIVE state notification can: peak_pci: peak_pci_remove(): fix UAF ocfs2: fix data corruption after conversion from inline format ocfs2: mount fails with buffer overflow in strlen elfcore: correct reference to CONFIG_UML vfs: check fd has read access in kernel_read_file_from_fd() ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset ASoC: DAPM: Fix missing kctl change notifications nfc: nci: fix the UAF of rf_conn_info object isdn: cpai: check ctr->cnr to avoid array index out of bound netfilter: Kconfig: use 'default y' instead of 'm' for bool config option ARM: dts: spear3xx: Fix gmac node isdn: mISDN: Fix sleeping function called from invalid context platform/x86: intel_scu_ipc: Update timeout value in comment ALSA: hda: avoid write to STATESTS if controller is in reset net: mdiobus: Fix memory leak in __mdiobus_register tracing: Have all levels of checks prevent recursion ARM: 9122/1: select HAVE_FUTEX_CMPXCHG Linux 4.9.288 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I8aaac774905fc04e20f969573f54832c3f18ad14
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
/*
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* Copyright (C) 2011 Instituto Nokia de Tecnologia
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*
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* Authors:
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* Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
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* Lauro Ramos Venancio <lauro.venancio@openbossa.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/nfc.h>
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#include <linux/module.h>
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#include "nfc.h"
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static DEFINE_RWLOCK(proto_tab_lock);
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static const struct nfc_protocol *proto_tab[NFC_SOCKPROTO_MAX];
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static int nfc_sock_create(struct net *net, struct socket *sock, int proto,
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int kern)
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{
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int rc = -EPROTONOSUPPORT;
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if (net != &init_net)
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return -EAFNOSUPPORT;
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if (proto < 0 || proto >= NFC_SOCKPROTO_MAX)
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return -EINVAL;
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read_lock(&proto_tab_lock);
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if (proto_tab[proto] && try_module_get(proto_tab[proto]->owner)) {
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rc = proto_tab[proto]->create(net, sock, proto_tab[proto], kern);
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module_put(proto_tab[proto]->owner);
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}
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read_unlock(&proto_tab_lock);
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return rc;
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}
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static struct net_proto_family nfc_sock_family_ops = {
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.owner = THIS_MODULE,
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.family = PF_NFC,
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.create = nfc_sock_create,
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};
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int nfc_proto_register(const struct nfc_protocol *nfc_proto)
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{
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int rc;
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if (nfc_proto->id < 0 || nfc_proto->id >= NFC_SOCKPROTO_MAX)
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return -EINVAL;
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rc = proto_register(nfc_proto->proto, 0);
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if (rc)
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return rc;
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write_lock(&proto_tab_lock);
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if (proto_tab[nfc_proto->id])
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rc = -EBUSY;
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else
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proto_tab[nfc_proto->id] = nfc_proto;
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write_unlock(&proto_tab_lock);
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if (rc)
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proto_unregister(nfc_proto->proto);
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return rc;
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}
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EXPORT_SYMBOL(nfc_proto_register);
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void nfc_proto_unregister(const struct nfc_protocol *nfc_proto)
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{
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write_lock(&proto_tab_lock);
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proto_tab[nfc_proto->id] = NULL;
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write_unlock(&proto_tab_lock);
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proto_unregister(nfc_proto->proto);
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}
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EXPORT_SYMBOL(nfc_proto_unregister);
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int __init af_nfc_init(void)
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{
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return sock_register(&nfc_sock_family_ops);
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}
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void af_nfc_exit(void)
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{
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sock_unregister(PF_NFC);
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}
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