/* Copyright (C) 2005-2010,2012 Freescale Semiconductor, Inc. * Copyright (c) 2005 MontaVista Software * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _EHCI_FSL_H #define _EHCI_FSL_H /* offsets for the non-ehci registers in the FSL SOC USB controller */ #define FSL_SOC_USB_SBUSCFG 0x90 #define SBUSCFG_INCR8 0x02 /* INCR8, specified */ #define FSL_SOC_USB_ULPIVP 0x170 #define FSL_SOC_USB_PORTSC1 0x184 #define PORT_PTS_MSK (3<<30) #define PORT_PTS_UTMI (0<<30) #define PORT_PTS_ULPI (2<<30) #define PORT_PTS_SERIAL (3<<30) #define PORT_PTS_PTW (1<<28) #define FSL_SOC_USB_PORTSC2 0x188 #define FSL_SOC_USB_USBMODE 0x1a8 #define USBMODE_CM_MASK (3 << 0) /* controller mode mask */ #define USBMODE_CM_HOST (3 << 0) /* controller mode: host */ #define USBMODE_ES (1 << 2) /* (Big) Endian Select */ #define FSL_SOC_USB_USBGENCTRL 0x200 #define USBGENCTRL_PPP (1 << 3) #define USBGENCTRL_PFP (1 << 2) #define FSL_SOC_USB_ISIPHYCTRL 0x204 #define ISIPHYCTRL_PXE (1) #define ISIPHYCTRL_PHYE (1 << 4) #define FSL_SOC_USB_SNOOP1 0x400 /* NOTE: big-endian */ #define FSL_SOC_USB_SNOOP2 0x404 /* NOTE: big-endian */ #define FSL_SOC_USB_AGECNTTHRSH 0x408 /* NOTE: big-endian */ #define FSL_SOC_USB_PRICTRL 0x40c /* NOTE: big-endian */ #define FSL_SOC_USB_SICTRL 0x410 /* NOTE: big-endian */ #define FSL_SOC_USB_CTRL 0x500 /* NOTE: big-endian */ #define CTRL_UTMI_PHY_EN (1<<9) #define CTRL_PHY_CLK_VALID (1 << 17) #define SNOOP_SIZE_2GB 0x1e /* control Register Bit Masks */ #define CONTROL_REGISTER_W1C_MASK 0x00020000 /* W1C: PHY_CLK_VALID */ #define ULPI_INT_EN (1<<0) #define WU_INT_EN (1<<1) #define USB_CTRL_USB_EN (1<<2) #define LINE_STATE_FILTER__EN (1<<3) #define KEEP_OTG_ON (1<<4) #define OTG_PORT (1<<5) #define PLL_RESET (1<<8) #define UTMI_PHY_EN (1<<9) #define ULPI_PHY_CLK_SEL (1<<10) #define PHY_CLK_VALID (1<<17) #endif /* _EHCI_FSL_H */ ass='txt' type='search' size='10' name='q' value=''/>
path: root/drivers/usb/gadget/udc/bdc/bdc_pci.c
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authorRui Miguel Silva <rmfrfs@gmail.com>2017-01-23 16:32:57 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-01-25 11:36:59 +0100
commitb17c1bba9cec1727451b906d9a0c209774624873 (patch)
treef0a0f51d405c884e23f695695858d85f6260fec0 /drivers/usb/gadget/udc/bdc/bdc_pci.c
parent9579c4dc21292f375715d7acca439dac9855b3e9 (diff)
staging: greybus: timesync: validate platform state callback
When tearingdown timesync, and not in arche platform, the state platform callback is not initialized. That will trigger the following NULL dereferencing. CallTrace: ? gb_timesync_platform_unlock_bus+0x11/0x20 [greybus] gb_timesync_teardown+0x85/0xc0 [greybus] gb_timesync_svc_remove+0xab/0x190 [greybus] gb_svc_del+0x29/0x110 [greybus] gb_hd_del+0x14/0x20 [greybus] ap_disconnect+0x24/0x60 [gb_es2] usb_unbind_interface+0x7a/0x2c0 __device_release_driver+0x96/0x150 device_release_driver+0x1e/0x30 bus_remove_device+0xe7/0x130 device_del+0x116/0x230 usb_disable_device+0x97/0x1f0 usb_disconnect+0x80/0x260 hub_event+0x5ca/0x10e0 process_one_work+0x126/0x3b0 worker_thread+0x55/0x4c0 ? process_one_work+0x3b0/0x3b0 kthread+0xc4/0xe0 ? kthread_park+0xb0/0xb0 ret_from_fork+0x22/0x30 So, fix that by adding checks before use the callback. Fixes: 970dc85bd95d ("greybus: timesync: Add timesync core driver") Cc: <stable@vger.kernel.org> # 4.9.x Signed-off-by: Rui Miguel Silva <rmfrfs@gmail.com> Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget/udc/bdc/bdc_pci.c')