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a1f5524a66
linux/drivers
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Ville Syrjälä a1f5524a66 drm: aux ->transfer() can return 0, deal with it 
Restore the correct behaviour (as in check msg.reply) when aux
->transfer() returns 0. It got removed in
commit 82922da391 ("drm/dp_helper: Retry aux transactions on all errors")

Now I can actually dump the "entire" DPCD on a Dell UP2314Q with
ddrescue. It has some offsets in the DPCD that can't be read
for some resaon, all you get is defers. Previously ddrescue would
just give up at the first unredable offset on account of
read() returning 0 means EOF. Here's the ddrescue log
for the interested:
0x00000000  0x00001400  +
0x00001400  0x00000030  -
0x00001430  0x000001D0  +
0x00001600  0x00000030  -
0x00001630  0x0001F9D0  +
0x00021000  0x00000001  -
0x00021001  0x000DEFFF  +

Cc: Lyude <cpaul@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch
Cc: stable@vger.kernel.org
Fixes: 82922da391 ("drm/dp_helper: Retry aux transactions on all errors")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-07-29 14:13:03 +10:00
..
accessibility
acpi Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2016-07-23 12:07:37 +09:00
amba
android
ata Merge branch 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2016-07-23 11:46:59 +09:00
atm atm: iphase: off by one in rx_pkt() 2016-05-31 11:52:59 -07:00
auxdisplay
base Driver core fixes for 4.7-rc4 2016-06-18 06:04:01 -10:00
bcma x86/quirks: Add early quirk to reset Apple AirPort card 2016-07-10 20:13:53 +02:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2016-07-07 15:34:09 -07:00
bluetooth Bluetooth: Add USB ID 13D3:3487 to ath3k 2016-05-13 16:54:59 +02:00
bus Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-05-19 10:02:26 -07:00
cdrom
char Linux 4.7-rc5 2016-07-02 15:56:01 +10:00
clk clk: at91: fix clk_programmable_set_parent() 2016-07-18 17:45:41 -07:00
clocksource Small release overall. 2016-05-19 11:27:09 -07:00
connector connector: fix out-of-order cn_proc netlink message delivery 2016-06-28 08:48:33 -04:00
cpufreq cpufreq: Avoid false-positive WARN_ON()s in cpufreq_update_policy() 2016-06-28 03:29:29 +02:00
cpuidle cpuidle: Fix last_residency division 2016-07-04 14:17:34 +02:00
crypto crypto: qat - make qat_asym_algs.o depend on asn1 headers 2016-07-21 12:19:53 +08:00
dax /dev/dax, core: file operations and dax-mmap 2016-05-20 22:02:55 -07:00
dca
devfreq PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed 2016-06-23 23:15:12 +02:00
dio
dma dmaengine: mv_xor: Fix incorrect offset in dma_map_page() 2016-06-07 12:44:23 +05:30
dma-buf dma-buf: Release module reference on creation failure 2016-07-18 14:10:49 +02:00
edac EDAC, sb_edac: Fix Knights Landing 2016-07-16 06:11:59 +09:00
eisa
extcon extcon: palmas: Fix boot up state of VBUS when using GPIO detection 2016-06-15 17:17:22 +09:00
firewire
firmware efi/arm: Fix the format of EFI debug messages 2016-06-03 09:57:36 +02:00
fmc
fpga
gpio gpio: tegra: don't auto-enable for COMPILE_TEST 2016-07-22 15:29:32 +02:00
gpu drm: aux ->transfer() can return 0, deal with it 2016-07-29 14:13:03 +10:00
hid HID: multitouch: enable palm rejection for Windows Precision Touchpad 2016-06-28 13:24:14 +02:00
hsi HSI: omap-ssi: move omap_ssi_port_update_fclk 2016-05-09 22:45:18 +02:00
hv
hwmon hwmon: (dell-smm) Cache fan_type() calls and change fan detection 2016-06-23 06:24:23 -07:00
hwspinlock drivers/hwspinlock: use correct radix tree API 2016-05-20 17:58:30 -07:00
hwtracing coresight: Handle build path error 2016-06-16 00:13:06 -07:00
i2c i2c: mux: reg: wrong condition checked for of_address_to_resource return value 2016-07-06 00:33:49 +09:00
ide
idle
iio iio:ad7266: Fix probe deferral for vref 2016-06-26 17:39:26 +01:00
infiniband i40iw: Enable remote access rights for stag allocation 2016-07-12 10:46:34 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-07-23 12:10:48 +09:00
iommu iommu/amd: Fix unity mapping initialization race 2016-07-06 18:04:55 +02:00
ipack
irqchip irqchip/mips-gic: Match IPI IRQ domain by bus token only 2016-07-05 16:54:21 +02:00
isdn TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
leds leds: handle suspend/resume in heartbeat trigger 2016-06-08 11:47:06 +02:00
lguest
lightnvm
macintosh
mailbox
mcb mcb: Acquire reference to carrier module in core 2016-06-13 18:49:30 -07:00
md Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2016-05-27 14:28:09 -07:00
media Linux 4.7 2016-07-26 17:26:29 +10:00
memory memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing 2016-06-16 11:43:48 +03:00
memstick drivers/memstick/core/mspro_block: use kmemdup 2016-05-23 17:04:14 -07:00
message SCSI misc on 20160517 2016-05-18 16:38:59 -07:00
mfd mfd: max77620: Fix FPS switch statements 2016-06-30 07:44:23 +01:00
misc mei: don't use wake_up_interruptible for wr_ctrl 2016-06-10 22:14:24 -07:00
mmc mmc: pxamci: fix potential oops 2016-07-18 11:50:40 +02:00
mtd Late MTD fix for v4.7: 2016-07-16 09:53:34 +09:00
net Linux 4.7 2016-07-26 17:26:29 +10:00
nfc NFC: pn533: handle interrupted commands in pn533_recv_frame 2016-05-10 00:01:47 +02:00
ntb
nubus
nvdimm libnvdimm, pfn, dax: fix initialization vs autodetect for mode + alignment 2016-06-23 17:50:39 -07:00
nvme nvme: Remove RCU namespace protection 2016-07-14 08:48:08 -07:00
nvmem remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
of drivers/of: Fix depth for sub-tree blob in unflatten_dt_nodes() 2016-06-09 14:36:34 -05:00
oprofile
parisc
parport
pci PCI: Fix unaligned accesses in VC code 2016-06-20 13:24:20 -05:00
pcmcia
perf arm: pmu: Fix non-devicetree probing 2016-06-15 09:51:35 +01:00
phy - Final patches fixing Reset API change 2016-07-01 15:17:16 -07:00
pinctrl Linux 4.7 2016-07-26 17:26:29 +10:00
platform platform/chrome: cros_ec_dev - double fetch bug in ioctl 2016-07-05 14:01:52 -07:00
pnp driver core update for 4.7-rc1 2016-05-20 21:26:15 -07:00
power power_supply: tps65217-charger: Fix NULL deref during property export 2016-06-16 15:54:11 +02:00
powercap Power management material for v4.7-rc1 2016-05-16 19:17:22 -07:00
pps pps: do not crash when failed to register 2016-07-23 10:25:54 +09:00
ps3
ptp ptp: oops in ptp_ioctl() 2016-05-29 22:32:27 -07:00
pwm pwm: atmel-hlcdc: Fix default PWM polarity 2016-06-14 10:51:45 +02:00
rapidio
ras
regulator regulator: Fix qcom-smd list voltage issues for msm8974 2016-07-13 04:22:16 +09:00
remoteproc remoteproc: Add additional crash reasons 2016-05-12 15:50:19 -07:00
reset
rpmsg
rtc rtc: tps6586x: rename so module can be autoloaded 2016-05-21 17:07:17 +02:00
s390 qeth: delete napi struct when removing a qeth device 2016-07-04 23:32:08 -07:00
sbus openprom: fix warning 2016-05-20 18:33:37 -07:00
scsi Merge branch 'jejb-fixes' into fixes 2016-07-06 07:25:55 -07:00
sfi
sh
sn
soc soc: mtk-pmic-wrap: avoid integer overflow warning 2016-05-19 15:20:24 +02:00
spi Merge remote-tracking branches 'spi/fix/ep93xx', 'spi/fix/rockchip', 'spi/fix/sunxi' and 'spi/fix/ti-qspi' into spi-linus 2016-06-30 13:17:29 +01:00
spmi
ssb
staging Linux 4.7 2016-07-26 17:26:29 +10:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-05-28 12:04:17 -07:00
tc
thermal Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2016-06-12 06:30:39 -07:00
thunderbolt
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2016-07-23 12:10:48 +09:00
uio
usb - Final patches fixing Reset API change 2016-07-01 15:17:16 -07:00
uwb
vfio vfio/pci: Allow VPD short read 2016-05-31 21:25:52 -06:00
vhost target: make close_session optional 2016-05-10 01:19:26 -07:00
video Merge omapdss header refactoring 2016-06-07 12:42:58 +03:00
virt
virtio virtio_balloon: fix PFN format for virtio-1 2016-05-22 19:44:13 +03:00
vlynq
vme
w1
watchdog watchdog: ebc-c384_wdt: Allow build for X86_64 2016-06-17 20:21:12 -07:00
xen xen/acpi: allow xen-acpi-processor driver to load on Xen 4.7 2016-07-08 14:53:13 +01:00
zorro
Kconfig libnvdimm for 4.7 2016-05-23 11:18:01 -07:00
Makefile /dev/dax, pmem: direct access to persistent memory 2016-05-20 22:02:53 -07:00