/* * Driver for USB Mass Storage compliant devices * Protocol Functions Header File * * Current development and maintenance by: * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) * * This driver is based on the 'USB Mass Storage Class' document. This * describes in detail the protocol used to communicate with such * devices. Clearly, the designers had SCSI and ATAPI commands in * mind when they created this document. The commands are all very * similar to commands in the SCSI-II and ATAPI specifications. * * It is important to note that in a number of cases this class * exhibits class-specific exemptions from the USB specification. * Notably the usage of NAK, STALL and ACK differs from the norm, in * that they are used to communicate wait, failed and OK on commands. * * Also, for certain devices, the interrupt endpoint is used to convey * status of a command. * * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more * information about this driver. * * 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, 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 _PROTOCOL_H_ #define _PROTOCOL_H_ /* Protocol handling routines */ extern void usb_stor_pad12_command(struct scsi_cmnd*, struct us_data*); extern void usb_stor_ufi_command(struct scsi_cmnd*, struct us_data*); extern void usb_stor_transparent_scsi_command(struct scsi_cmnd*, struct us_data*); /* struct scsi_cmnd transfer buffer access utilities */ enum xfer_buf_dir {TO_XFER_BUF, FROM_XFER_BUF}; extern unsigned int usb_stor_access_xfer_buf(unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb, struct scatterlist **, unsigned int *offset, enum xfer_buf_dir dir); extern void usb_stor_set_xfer_buf(unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb); #endif 'grep'>log msg
path: root/net/6lowpan/nhc_ghc_icmpv6.c
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authorChristoph Hellwig <hch@lst.de>2017-01-24 14:50:19 +0100
committerJens Axboe <axboe@fb.com>2017-01-24 07:55:53 -0700
commit690e5325b8c7d5db05fc569c0f7b888bb4248272 (patch)
treeb9c39916a4397b1eb628e07e4fc6aff91219e393 /net/6lowpan/nhc_ghc_icmpv6.c
parenta4685d2f58e2230d4e27fb2ee581d7ea35e5d046 (diff)
block: fix use after free in __blkdev_direct_IO
We can't dereference the dio structure after submitting the last bio for this request, as I/O completion might have happened before the code is run. Introduce a local is_sync variable instead. Fixes: 542ff7bf ("block: new direct I/O implementation") Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Matias Bjørling <m@bjorling.me> Tested-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'net/6lowpan/nhc_ghc_icmpv6.c')