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kernel-fxtec-pro1x/drivers
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Finn Thain ce7ec07aba scsi: mac_scsi: Fix pseudo DMA implementation, take 2 
commit 78ff751f8e6a9446e9fb26b2bff0b8d3f8974cbd upstream.

A system bus error during a PDMA transfer can mess up the calculation of
the transfer residual (the PDMA handshaking hardware lacks a byte
counter). This results in data corruption.

The algorithm in this patch anticipates a bus error by starting each
transfer with a MOVE.B instruction. If a bus error is caught the transfer
will be retried. If a bus error is caught later in the transfer (for a
MOVE.W instruction) the transfer gets failed and subsequent requests for
that target will use PIO instead of PDMA.

This avoids the "!REQ and !ACK" error so the severity level of that message
is reduced to KERN_DEBUG.

Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org # v4.14+
Fixes: 3a0f64bfa9 ("mac_scsi: Fix pseudo DMA implementation")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Reported-by: Chris Jones <chris@martin-jones.com>
Tested-by: Stan Johnson <userm57@yahoo.com>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-26 09:14:19 +02:00
..
accessibility
acpi ACPICA: Clear status of GPEs on first direct enable 2019-07-26 09:14:09 +02:00
amba
android binder: fix memory leak in error path 2019-07-14 08:11:21 +02:00
ata libata: don't request sense data on !ZAC ATA devices 2019-07-26 09:14:12 +02:00
atm
auxdisplay auxdisplay: hd44780: Fix memory leak on ->remove() 2019-04-20 09:15:55 +02:00
base regmap: fix bulk writes on paged registers 2019-07-26 09:14:06 +02:00
bcma
block floppy: fix out-of-bounds read in copy_buffer 2019-07-26 09:14:18 +02:00
bluetooth Bluetooth: Add new 13d3:3501 QCA_ROME device 2019-07-26 09:14:16 +02:00
bus
cdrom cdrom: Fix race condition in cdrom_sysctl_register 2019-04-05 22:33:10 +02:00
char hwrng: omap - Set default quality 2019-05-31 06:46:31 -07:00
clk clk: ti: clkctrl: Fix returning uninitialized data 2019-07-21 09:03:04 +02:00
clocksource clocksource/drivers/exynos_mct: Increase priority over ARM arch timer 2019-07-26 09:14:12 +02:00
connector connector: fix unsafe usage of ->real_parent 2019-03-19 13:12:38 +01:00
cpufreq cpufreq: kirkwood: fix possible object reference leak 2019-05-31 06:46:24 -07:00
cpuidle
crypto crypto: inside-secure - do not rely on the hardware last bit for result descriptors 2019-07-26 09:14:04 +02:00
dax mm/huge_memory: fix vmf_insert_pfn_{pmd, pud}() crash, handle unaligned addresses 2019-05-22 07:37:40 +02:00
dca
devfreq
dio
dma dmaengine: imx-sdma: fix use-after-free on probe error path 2019-07-26 09:13:56 +02:00
dma-buf
edac EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec 2019-07-26 09:14:13 +02:00
eisa
extcon extcon: arizona: Disable mic detect if running when driver is removed 2019-05-31 06:46:23 -07:00
firewire
firmware efi/bgrt: Drop BGRT status field reserved bits check 2019-07-21 09:03:04 +02:00
fmc
fpga fpga: dfl: Add lockdep classes for pdata->lock 2019-06-25 11:35:55 +08:00
fsi
gnss gnss: sirf: fix premature wakeup interrupt enable 2019-03-10 07:17:21 +01:00
gpio gpiolib: Fix references to gpiod_[gs]et_*value_cansleep() variants 2019-07-26 09:14:16 +02:00
gpu drm/udl: move to embedding drm device inside udl device. 2019-07-21 09:03:18 +02:00
hid HID: multitouch: Add pointstick support for ALPS Touchpad 2019-07-21 09:03:10 +02:00
hsi
hv Drivers: hv: vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup() 2019-05-10 17:54:04 +02:00
hwmon hwmon: (pmbus/core) Treat parameters as paged if on multiple pages 2019-06-25 11:35:59 +08:00
hwspinlock
hwtracing intel_th: msu: Fix single mode with IOMMU 2019-05-25 18:23:26 +02:00
i2c i2c: pca-platform: Fix GPIO lookup code 2019-07-10 09:53:39 +02:00
ide
idle x86/cpu: Sanitize FAM6_ATOM naming 2019-05-14 19:17:53 +02:00
iio iio: temperature: mlx90632 Relax the compatibility check 2019-06-25 11:35:54 +08:00
infiniband ipoib: correcly show a VF hardware address 2019-07-26 09:14:08 +02:00
input Input: synaptics - enable SMBUS on T480 thinkpad trackpad 2019-07-21 09:03:02 +02:00
iommu iommu: Fix a leak in iommu_insert_resv_region 2019-07-26 09:14:06 +02:00
ipack
irqchip irqchip/meson-gpio: Add support for Meson-G12A SoC 2019-07-26 09:14:06 +02:00
isdn mISDN: make sure device name is NUL terminated 2019-06-22 08:15:16 +02:00
leds leds: trigger: netdev: use memcpy in device_name_store 2019-05-04 09:20:22 +02:00
lightnvm lightnvm: pblk: fix freeing of merged pages 2019-07-26 09:14:09 +02:00
macintosh
mailbox mailbox: stm32-ipcc: check invalid irq 2019-06-15 11:54:04 +02:00
mcb
md bcache: fix potential deadlock in cached_def_free() 2019-07-26 09:14:13 +02:00
media media: hdpvr: fix locking and a missing msleep 2019-07-26 09:14:11 +02:00
memory memory: tegra: Fix integer overflow on tick value calculation 2019-05-25 18:23:32 +02:00
memstick
message
mfd mfd: twl6040: Fix device init errors for ACCCTL register 2019-06-15 11:54:03 +02:00
misc VMCI: Fix integer overflow in VMCI handle arrays 2019-07-14 08:11:21 +02:00
mmc mmc: core: complete HS400 before checking status 2019-07-14 08:11:13 +02:00
mtd mtd: spinand: macronix: Fix ECC Status Read 2019-06-11 12:20:50 +02:00
mux
net iavf: fix dereference of null rx_buffer pointer 2019-07-26 09:14:17 +02:00
nfc spi: ST ST95HF NFC: declare missing of table 2019-05-16 19:41:25 +02:00
ntb
nubus
nvdimm libnvdimm: Fix compilation warnings with W=1 2019-06-19 08:18:03 +02:00
nvme nvme-pci: set the errno on ctrl state change error 2019-07-26 09:14:09 +02:00
nvmem nvmem: sunxi_sid: Support SID on A83T and H5 2019-06-15 11:54:07 +02:00
of of: overlay: set node fields from properties when add new overlay node 2019-06-09 09:17:24 +02:00
opp
oprofile
parisc parisc: Use implicit space register selection for loading the coherence index of I/O pdirs 2019-06-11 12:20:51 +02:00
parport parport: Fix mem leak in parport_register_dev_model 2019-06-25 11:35:55 +08:00
pci ACPI/PCI: PM: Add missing wakeup.flags.valid checks 2019-06-22 08:15:17 +02:00
pcmcia
perf perf/arm-cci: Remove broken race mitigation 2019-05-31 06:46:17 -07:00
phy phy: mapphone-mdm6600: add gpiolib dependency 2019-05-31 06:46:20 -07:00
pinctrl pinctrl: mediatek: Update cur_mask in mask/mask ops 2019-07-21 09:03:11 +02:00
platform platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow 2019-07-10 09:53:38 +02:00
pnp
power power: supply: max14656: fix potential use-before-alloc 2019-06-15 11:54:09 +02:00
powercap x86/cpu: Sanitize FAM6_ATOM naming 2019-05-14 19:17:53 +02:00
pps
ps3
ptp
pwm pwm: Fix deadlock warning when removing PWM device 2019-06-15 11:54:10 +02:00
rapidio rapidio: fix a NULL pointer dereference when create_workqueue() fails 2019-06-15 11:53:59 +02:00
ras RAS/CEC: Fix pfn insertion 2019-07-26 09:14:05 +02:00
regulator regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting 2019-04-05 22:33:15 +02:00
remoteproc
reset reset: meson-audio-arb: Fix missing .owner setting of reset_controller_dev 2019-05-08 07:21:47 +02:00
rpmsg
rtc rtc: pcf8523: don't return invalid date when battery is low 2019-06-19 08:18:07 +02:00
s390 s390/qdio: handle PENDING state for QEBSM devices 2019-07-26 09:14:04 +02:00
sbus
scsi scsi: mac_scsi: Fix pseudo DMA implementation, take 2 2019-07-26 09:14:19 +02:00
sfi
sh
siox
slimbus slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register 2019-05-31 06:46:14 -07:00
sn
soc soc: bcm: brcmstb: biuctrl: Register writes require a barrier 2019-07-14 08:11:03 +02:00
soundwire soundwire: intel: set dai min and max channels correctly 2019-07-14 08:11:07 +02:00
spi spi: bitbang: Fix NULL pointer dereference in spi_unregister_master 2019-07-10 09:53:32 +02:00
spmi
ssb ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit 2019-05-31 06:46:04 -07:00
staging media: staging: media: davinci_vpfe: - Fix for memory leak if decoder initialization fails. 2019-07-26 09:14:02 +02:00
target scsi: iscsi: set auth_protocol back to NULL if CHAP_A value is not supported 2019-07-26 09:13:56 +02:00
tc
tee
thermal drivers: thermal: tsens: Don't print error message on -EPROBE_DEFER 2019-06-15 11:54:02 +02:00
thunderbolt thunderbolt: property: Fix a NULL pointer dereference 2019-05-31 06:46:31 -07:00
tty Revert "serial: 8250: Don't service RX FIFO if interrupts are disabled" 2019-07-14 08:11:19 +02:00
uio
usb drivers/usb/typec/tps6598x.c: fix 4CC cmd write 2019-07-14 08:11:20 +02:00
uwb
vfio vfio: Fix WARNING "do not call blocking ops when !TASK_RUNNING" 2019-06-15 11:54:07 +02:00
vhost vhost_net: disable zerocopy by default 2019-07-26 09:14:08 +02:00
video video: imsttfb: fix potential NULL pointer dereferences 2019-06-15 11:54:10 +02:00
virt drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl 2019-05-16 19:41:31 +02:00
virtio virtio_pci: fix a NULL pointer reference in vp_del_vqs 2019-05-10 17:54:08 +02:00
visorbus
vlynq
vme
w1 w1: fix the resume command API 2019-05-31 06:46:14 -07:00
watchdog watchdog: fix compile time error of pretimeout governors 2019-06-15 11:54:06 +02:00
xen xen: let alloc_xenballooned_pages() fail if not enough memory free 2019-07-26 09:14:18 +02:00
zorro
Kconfig
Makefile