H. Peter Anvin a01c780042 nvram: Fix write beyond end condition; prove to gcc copy is safe ... In nvram_write, first of all, correctly handle the case where the file pointer is already beyond the end; we should return EOF in that case. Second, make the logic a bit more explicit so that gcc can statically prove that the copy_from_user() is safe. Once the condition of the beyond-end filepointer is eliminated, the copy is safe but gcc can't prove it, causing build failures for i386 allyesconfig. Third, eliminate the entirely superfluous variable "len", and just use the passed-in variable "count" instead. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <tip-*@git.kernel.org>		2009-12-11 15:48:23 -08:00
..
agp	Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2009-12-10 21:56:47 -08:00
hw_random	Merge branch 'bkl-drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-12-09 08:07:38 -08:00
ip2	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
ipmi	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
mwave	mwave: fix read buffer overflow	2009-09-24 07:21:03 -07:00
pcmcia	pcmcia: rework the irq_req_t typedef	2009-11-28 18:03:14 +01:00
rio	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
tpm	tpm: autoload tpm_tis based on system PnP IDs	2009-11-03 12:05:50 +11:00
xilinx_hwicap	const: constify remaining file_operations	2009-10-01 16:11:11 -07:00
.gitignore
amiserial.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
apm-emulation.c	const: constify remaining file_operations	2009-10-01 16:11:11 -07:00
applicom.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
applicom.h
bfin-otp.c	const: constify remaining file_operations	2009-10-01 16:11:11 -07:00
bfin_jtag_comm.c	bfin_jtag_comm: clean up printk usage	2009-06-22 11:32:23 -07:00
briq_panel.c
bsr.c	powerpc/BSR: Fix BSR to allow mmap of small BSR on 64k kernel	2009-06-26 14:37:26 +10:00
cd1865.h
ChangeLog
consolemap.c	consolemap: indentation & braces disagree - reindent	2009-01-06 15:59:30 -08:00
cp437.uni	unicode table for cp437	2008-12-13 11:25:49 -08:00
cs5535_gpio.c	drivers: Remove BKL from cs5535_gpio	2009-10-14 17:36:48 +02:00
cyclades.c	cyclades: fix read buffer overflow	2009-10-01 16:11:16 -07:00
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c	rtc: use bcd2bin/bin2bcd	2008-10-20 08:52:41 -07:00
ds1620.c	[ARM] netwinder: clean up GPIO naming	2008-12-13 09:12:07 +00:00
dsp56k.c	device create: char: convert device_create_drvdata to device_create	2008-10-16 09:24:42 -07:00
dtlk.c	headers: remove sched.h from poll.h	2009-10-04 15:05:10 -07:00
efirtc.c	rtc: Remove BKL from efirtc	2009-10-14 17:36:51 +02:00
epca.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
epca.h
epcaconfig.h
esp.c	serial: move delta_msr_wait into the tty_port	2009-09-19 13:13:31 -07:00
generic_nvram.c	nvram: Drop the bkl from nvram_llseek()	2009-10-14 17:36:49 +02:00
generic_serial.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
genrtc.c	headers: Fix build after <linux/sched.h> removal	2009-10-13 10:20:16 -07:00
hangcheck-timer.c
hpet.c	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
hvc_beat.c	powerpc/cell: Use correct types in beat files	2009-01-08 16:25:16 +11:00
hvc_console.c	hvc_console: Provide (un)locked version for hvc_resize()	2009-09-24 15:12:47 +10:00
hvc_console.h	hvc_console: Provide (un)locked version for hvc_resize()	2009-09-24 15:12:47 +10:00
hvc_irq.c	hvc_console: Call free_irq() only if request_irq() was successful	2009-01-13 14:48:01 +11:00
hvc_iseries.c	drivers/hvc: Add missing __devexit_p()	2009-06-16 14:15:44 +10:00
hvc_iucv.c	hvc_console: Provide (un)locked version for hvc_resize()	2009-09-24 15:12:47 +10:00
hvc_rtas.c
hvc_udbg.c	powerpc: udbg-based backend for hvc_console	2008-11-19 16:04:25 +11:00
hvc_vio.c	hvc_console: Add __init and __exit to hvc_vio	2009-08-28 14:24:11 +10:00
hvc_xen.c	xen/hvc: make sure console output is always emitted, with explicit polling	2009-11-03 11:05:51 -08:00
hvcs.c	Merge commit 'origin/master' into next	2009-06-18 11:16:55 +10:00
hvsi.c	powerpc/hvsi: Avoid calculating possibly-invalid address	2009-08-20 10:29:28 +10:00
i8k.c	i8k: Add Dell Vostro systems	2009-01-02 10:28:32 -08:00
isicom.c	isicom: split the open method for the isicom device	2009-09-19 13:13:27 -07:00
istallion.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
Kconfig	tty: Mark generic_serial users as BROKEN	2009-10-30 14:43:12 -07:00
keyboard.c	Merge commit 'v2.6.32' into next	2009-12-02 23:38:13 -08:00
lp.c	device create: char: convert device_create_drvdata to device_create	2008-10-16 09:24:42 -07:00
Makefile	drivers/char/uv_mmtimer.c: add memory mapped RTC driver for UV	2009-09-24 07:21:03 -07:00
mbcs.c	[IA64] mbcs: fix printk format warnings	2009-09-15 08:42:00 -07:00
mbcs.h
mem.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-12-09 19:43:33 -08:00
misc.c	drivers: Remove BKL from misc_open	2009-10-14 17:33:32 +02:00
mmtimer.c
moxa.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
moxa.h
mspec.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
mxser.c	tty: Char: mxser, use THRE for ASPP_OQUEUE ioctl	2009-09-19 13:13:38 -07:00
mxser.h
n_hdlc.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
n_r3964.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
n_tty.c	n_tty: move echoctl check and clean up logic	2009-09-19 13:13:34 -07:00
nozomi.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
nsc_gpio.c
nvram.c	nvram: Fix write beyond end condition; prove to gcc copy is safe	2009-12-11 15:48:23 -08:00
nwbutton.c
nwbutton.h
nwflash.c	[ARM] netwinder: clean up GPIO naming	2008-12-13 09:12:07 +00:00
pc8736x_gpio.c	drivers: Remove BKL from pc8736x_gpio	2009-10-14 17:36:52 +02:00
ppdev.c	ppdev: reduce kernel log spam	2009-06-18 13:03:54 -07:00
ps3flash.c	ps3flash: Always read chunks of 256 KiB, and cache them	2009-06-15 16:47:27 +10:00
pty.c	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
random.c	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
raw.c	Driver-Core: extend devnode callbacks to provide permissions	2009-09-19 12:50:38 -07:00
riscom8.c	tty: riscom8, fix tty refcnt	2009-09-19 13:13:37 -07:00
riscom8.h
riscom8_reg.h
rocket.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
rocket.h	tty: rocketport uses different port flags to everyone else	2009-01-02 10:19:39 -08:00
rocket_int.h	tty: rocketport uses different port flags to everyone else	2009-01-02 10:19:39 -08:00
rtc.c	sysctl: Drop & in front of every proc_handler.	2009-11-18 08:37:40 -08:00
scc.h	m68k: atari - Rename "mfp" to "st_mfp"	2009-02-22 09:23:02 -08:00
scx200_gpio.c	drivers: Remove BKL from scx200_gpio	2009-10-14 17:36:53 +02:00
selection.c	tty: rewrite the ldisc locking	2009-06-11 08:51:01 -07:00
ser_a2232.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c	serial167: fix read buffer overflow	2009-10-01 16:11:16 -07:00
snsc.c	device create: char: convert device_create_drvdata to device_create	2008-10-16 09:24:42 -07:00
snsc.h
snsc_event.c
sonypi.c	headers: Fix build after <linux/sched.h> removal	2009-10-13 10:20:16 -07:00
specialix.c	specialix.c: convert nested spin_lock_irqsave to spin_lock	2009-07-20 16:38:43 -07:00
specialix_io8.h
stallion.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
sx.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
sx.h
sxboards.h
sxwindow.h
synclink.c	hdlc: convert to netdev_tx_t	2009-09-01 01:13:31 -07:00
synclink_gt.c	hdlc: convert to netdev_tx_t	2009-09-01 01:13:31 -07:00
synclinkmp.c	hdlc: convert to netdev_tx_t	2009-09-01 01:13:31 -07:00
sysrq.c	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
tb0219.c	mips: Remove BKL from tb0219	2009-10-14 17:36:53 +02:00
tlclk.c	headers: remove sched.h from interrupt.h	2009-10-11 11:20:58 -07:00
toshiba.c
tty_audit.c	tty: remove buffer special casing	2009-06-11 08:51:02 -07:00
tty_buffer.c	tty: use the new 'flush_delayed_work()' helper to do ldisc flush	2009-10-14 09:20:41 -07:00
tty_io.c	tty: Fix regressions caused by commit b50989dc	2009-09-27 13:35:16 -07:00
tty_ioctl.c	tree-wide: fix a very frequent spelling mistake	2009-11-09 09:40:54 +01:00
tty_ldisc.c	tty: Avoid dropping ldisc_mutex over hangup tty re-initialization	2009-10-03 21:44:21 -07:00
tty_port.c	tty_port: handle the nonblocking open of a dead port corner case	2009-11-30 16:38:25 -08:00
uv_mmtimer.c	drivers/char/uv_mmtimer.c: add memory mapped RTC driver for UV	2009-09-24 07:21:03 -07:00
vc_screen.c	vc: create vcs(a) devices for consoles	2009-07-20 16:38:43 -07:00
viotape.c	tape: beyond ARRAY_SIZE of viocd_diskinfo	2009-06-02 10:32:34 +10:00
virtio_console.c	virtio: let header files include virtio_ids.h	2009-10-22 16:39:28 +10:30
vme_scc.c	m68k: vme_scc - Kill warn_unused_result warnings	2009-01-12 20:56:38 +01:00
vt.c	vc: Add support for hiding the cursor when creating VTs	2009-11-13 15:54:27 -08:00
vt_ioctl.c	vt: Fix use of "new" in a struct field	2009-11-19 13:43:06 -08:00