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Daniel Kurtz 26883c31b0 drm/i915/intel_i2c: handle zero-length writes 
A common method of probing an i2c bus is trying to do a zero-length write.
Handle this case by checking the length first before decrementing it.

This is actually important, since attempting a zero-length write is one
of the ways that i2cdetect and i2c_new_probed_device detect whether
there is device present on the bus with a given address.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-12 21:14:06 +02:00
..
accessibility
vt:tackle kbd_table
2012-03-08 10:50:35 -08:00
acpi
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-04-06 19:56:04 -07:00
amba
…
ata
1) AHCI regression fix. A recent "make driver conform to spec" change
2012-03-22 20:22:30 -07:00
atm
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
auxdisplay
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base
regmap: A couple of small fixes for 3.4
2012-04-07 09:56:00 -07:00
bcma
bcma: silence PMU warning for BCM4331
2012-03-07 13:56:37 -05:00
block
Two fixes for regressions:
2012-04-06 17:54:53 -07:00
bluetooth
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
cdrom
powerpc: Remove some of the legacy iSeries specific device drivers
2012-03-16 09:28:05 +11:00
char
Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
2012-04-12 10:27:01 +01:00
clk
clk: make CONFIG_COMMON_CLK invisible
2012-03-19 09:37:11 +00:00
clocksource
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
connector
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cpufreq
ARM: SoC fixes for 3.4-rc2
2012-04-05 22:13:39 -07:00
cpuidle
Merge branches 'idle-fix' and 'misc' into release
2012-04-06 21:48:59 -04:00
crypto
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2012-03-22 18:15:32 -07:00
dca
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devfreq
ARM: global cleanups
2012-03-27 16:03:32 -07:00
dio
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dma
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
edac
Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
2012-04-06 17:56:20 -07:00
eisa
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firewire
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
firmware
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gpio
gpio: tegra: Iterate over the correct number of banks
2012-04-04 13:13:18 -06:00
gpu
drm/i915/intel_i2c: handle zero-length writes
2012-04-12 21:14:06 +02:00
hid
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
hsi
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hv
Tools: hv: Support enumeration from all the pools
2012-03-16 13:36:04 -07:00
hwmon
hwmon: (ad7314) Adds missing spi_dev initialization
2012-04-03 17:08:28 -07:00
hwspinlock
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i2c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
ide
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
idle
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
ieee802154
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infiniband
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2012-03-29 23:17:44 -07:00
iommu
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-04-02 17:53:39 -07:00
leds
MFD changes for 3.4
2012-03-28 13:56:35 -07:00
lguest
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macintosh
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
mca
…
md
md/raid1,raid10: don't compare excess byte during consistency check.
2012-04-03 15:39:23 +10:00
media
ARM: cleanups of io includes
2012-03-29 18:02:10 -07:00
memstick
memstick: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:19 +08:00
message
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
mfd
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
misc
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
mmc
mmc: use really long write timeout to deal with crappy cards
2012-04-05 20:32:34 -04:00
mtd
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
net
Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
2012-04-06 17:56:20 -07:00
nfc
NFC: Remove the rf mode parameter from the DEP link up routine
2012-03-06 15:16:23 -05:00
nubus
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
of
GPIO changes for v3.4
2012-03-28 14:08:46 -07:00
oprofile
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
parisc
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
parport
…
pci
Two fixes for regressions:
2012-04-06 17:54:53 -07:00
pcmcia
Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia
2012-03-29 16:00:48 -07:00
pinctrl
pinctrl: support pinconfig on the U300
2012-03-12 22:49:03 +01:00
platform
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-03-30 16:45:39 -07:00
pnp
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-03-30 16:45:39 -07:00
power
Various small bugfixes and enhancements, plus two new drivers:
2012-03-30 16:09:02 -07:00
pps
…
ps3
…
ptp
phc: Update author's email address.
2012-03-17 01:41:43 -07:00
rapidio
rapidio/tsi721: fix bug in register offset definitions
2012-03-15 17:03:03 -07:00
regulator
regulator: Fixes for -rc1
2012-04-04 10:09:30 -07:00
remoteproc
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
rpmsg
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rtc
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
s390
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
sbus
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
scsi
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
sfi
…
sh
SuperH updates for 3.4 merge window
2012-03-30 00:09:17 -07:00
sn
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spi
Merge branch 'akpm' (Andrew's patch-bomb)
2012-04-05 15:30:34 -07:00
ssb
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-03-20 21:04:47 -07:00
staging
Documentation: remove references to /etc/modprobe.conf
2012-03-30 16:03:15 -07:00
target
tcm_fc: Do not free tpg structure during wq allocation failure
2012-04-06 18:57:05 -07:00
tc
…
thermal
thermal: Fix for setting the thermal zone mode to enable/disable
2012-03-22 01:10:18 -04:00
tty
SuperH updates for 3.4-rc1
2012-04-07 09:52:46 -07:00
uio
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usb
ARM: SoC fixes for 3.4-rc2
2012-04-05 22:13:39 -07:00
uwb
simple_open: automatically convert to simple_open()
2012-04-05 15:25:50 -07:00
vhost
Merge branch 'vhost-net' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2012-03-23 14:46:48 -04:00
video
ARM: SoC fixes for 3.4-rc2
2012-04-05 22:13:39 -07:00
virt
…
virtio
virtio-pci: switch to PM ops macro to initialise PM functions
2012-03-31 08:09:51 +05:30
vlynq
…
w1
DS2781 Maxim Stand-Alone Fuel Gauge battery and w1 slave drivers
2012-03-08 11:15:33 -08:00
watchdog
ARM: cleanups of io includes
2012-03-29 18:02:10 -07:00
xen
Two fixes for regressions:
2012-04-06 17:54:53 -07:00
zorro
…
Kconfig
Merge branch 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi
2012-04-02 09:50:40 -07:00
Makefile
Merge branch 'for-next' of git://gitorious.org/kernel-hsi/kernel-hsi
2012-04-02 09:50:40 -07:00