android_kernel_motorola_sm6375/drivers
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Andy Shevchenko 73162ca815 dmaengine: dmatest: Fix process hang when reading 'wait' parameter
commit aa72f1d20ee973d68f26d46fce5e1cf6f9b7e1ca upstream.

If we do

  % echo 1 > /sys/module/dmatest/parameters/run
  [  115.851124] dmatest: Could not start test, no channels configured

  % echo dma8chan7 > /sys/module/dmatest/parameters/channel
  [  127.563872] dmatest: Added 1 threads using dma8chan7

  % cat /sys/module/dmatest/parameters/wait
  ... !!! HANG !!! ...

The culprit is the commit 6138f967bc

  ("dmaengine: dmatest: Use fixed point div to calculate iops")

which makes threads not to run, but pending and being kicked off by writing
to the 'run' node. However, it forgot to consider 'wait' routine to avoid
above mentioned case.

In order to fix this, check for really running threads, i.e. with pending
and done flags unset.

It's pity the culprit commit hadn't updated documentation and tested all
possible scenarios.

Fixes: 6138f967bc ("dmaengine: dmatest: Use fixed point div to calculate iops")
Cc: Seraj Alijan <seraj.alijan@sondrel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200428113518.70620-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-06 08:15:16 +02:00
..
accessibility
acpi PM: ACPI: Output correct message on target power state 2020-05-06 08:15:09 +02:00
amba
android binderfs: use refcount for binder control devices too 2020-03-25 08:25:50 +01:00
ata libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set 2020-04-17 10:50:22 +02:00
atm
auxdisplay
base PM: sleep: core: Switch back to async_schedule_dev() 2020-05-02 08:48:53 +02:00
bcma
block virtio-blk: improve virtqueue error to BLK_STS 2020-04-29 16:33:05 +02:00
bluetooth
bus bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads 2020-04-17 10:49:56 +02:00
cdrom
char tpm: ibmvtpm: retry on H_CLOSED in tpm_ibmvtpm_send() 2020-04-29 16:33:16 +02:00
clk clk: tegra: Fix Tegra PMC clock out parents 2020-04-23 10:36:29 +02:00
clocksource clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources 2020-04-01 11:02:12 +02:00
connector
counter counter: 104-quad-8: Add lock guards - generic interface 2020-05-02 08:48:44 +02:00
cpufreq cpufreq: powernv: Fix use-after-free 2020-04-17 10:50:22 +02:00
cpuidle
crypto crypto: caam - fix the address of the last entry of S/G 2020-05-06 08:15:07 +02:00
dax
dca
devfreq Revert "PM / devfreq: Modify the device name as devfreq(X) for sysfs" 2020-03-05 16:43:43 +01:00
dio
dma dmaengine: dmatest: Fix process hang when reading 'wait' parameter 2020-05-06 08:15:16 +02:00
dma-buf dma-buf: Fix SET_NAME ioctl uapi 2020-05-06 08:15:01 +02:00
edac EDAC/synopsys: Do not print an error with back-to-back snprintf() calls 2020-03-12 13:00:31 +01:00
eisa
extcon extcon: axp288: Add wakeup support 2020-04-08 09:08:43 +02:00
firewire
firmware efi/x86: Ignore the memory attributes table on i386 2020-04-17 10:50:03 +02:00
fpga fpga: dfl: pci: fix return value of cci_pci_sriov_configure 2020-04-29 16:33:22 +02:00
fsi
gnss
gpio gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model 2020-04-02 15:11:01 +02:00
gpu drm/qxl: qxl_release use after free 2020-05-06 08:15:05 +02:00
greybus
hid HID: add ALWAYS_POLL quirk to lenovo pixart mouse 2020-03-21 08:11:59 +01:00
hsi
hv Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM 2020-05-06 08:15:09 +02:00
hwmon hwmon: (jc42) Fix name to have no illegal characters 2020-05-02 08:48:59 +02:00
hwspinlock
hwtracing stm class: sys-t: Fix the use of time_after() 2020-03-25 08:25:56 +01:00
i2c i2c: aspeed: Avoid i2c interrupt status clear race condition. 2020-05-06 08:15:15 +02:00
i3c
ide
idle
iio iio:ad7797: Use correct attribute_group 2020-05-02 08:48:44 +02:00
infiniband RDMA/cm: Fix an error check in cm_alloc_id_priv() 2020-05-06 08:15:13 +02:00
input Input: i8042 - add Acer Aspire 5738z to nomux list 2020-04-17 10:50:21 +02:00
interconnect
iommu iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system 2020-05-06 08:15:15 +02:00
ipack
irqchip irqchip/mbigen: Free msi_desc on device teardown 2020-04-23 10:36:20 +02:00
isdn
leds leds: core: Fix warning message when init_data 2020-04-23 10:36:37 +02:00
lightnvm
macintosh macintosh: windfarm: fix MODINFO regression 2020-03-18 07:17:53 +01:00
mailbox
mcb
md dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath 2020-05-06 08:15:10 +02:00
media media: ti-vpe: cal: fix a kernel oops when unloading module 2020-04-17 10:50:08 +02:00
memory
memstick
message
mfd mfd: dln2: Fix sanity checking for endpoints 2020-04-17 10:50:25 +02:00
misc mei: me: add cedar fork device ids 2020-04-08 09:08:42 +02:00
mmc mmc: meson-mx-sdio: remove the broken ->card_busy() op 2020-05-06 08:15:07 +02:00
mtd mtd: phram: fix a double free issue in error path 2020-04-23 10:36:45 +02:00
mux
net qed: Fix use after free in qed_chain_free 2020-05-02 08:49:01 +02:00
nfc NFC: fdp: Fix a signedness bug in fdp_nci_send_patch() 2020-04-01 11:01:38 +02:00
ntb
nubus
nvdimm libnvdimm: Out of bounds read in __nd_ioctl() 2020-04-23 10:36:42 +02:00
nvme nvme: prevent double free in nvme_alloc_ns() error handling 2020-05-06 08:15:16 +02:00
nvmem nvmem: check for NULL reg_read and reg_write before dereferencing 2020-04-08 09:08:42 +02:00
of of: overlay: kmemleak in dup_and_fixup_symbol_prop() 2020-04-23 10:36:23 +02:00
opp
oprofile
parisc
parport
pci PCI: Move Apex Edge TPU class quirk to fix BAR assignment 2020-05-02 08:48:50 +02:00
pcmcia
perf drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer 2020-03-25 08:25:47 +01:00
phy phy: uniphier-usb3ss: Add Pro5 support 2020-04-23 10:36:33 +02:00
pinctrl pinctrl: core: Remove extra kref_get which blocks hogs being freed 2020-03-18 07:17:55 +01:00
platform platform/chrome: cros_ec_rpmsg: Fix race with host event 2020-04-21 09:04:51 +02:00
pnp
power power: supply: axp288_fuel_gauge: Broaden vendor check for Intel Compute Sticks. 2020-04-23 10:36:41 +02:00
powercap
pps
ps3
ptp
pwm pwm: bcm2835: Dynamically allocate base 2020-04-29 16:33:02 +02:00
rapidio
ras
regulator regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling 2020-03-12 13:00:29 +01:00
remoteproc remoteproc: Fix wrong rvring index computation 2020-05-02 08:48:41 +02:00
reset
rpmsg
rtc rtc: 88pm860x: fix possible race condition 2020-04-23 10:36:31 +02:00
s390 s390/cio: avoid duplicated 'ADD' uevents 2020-04-29 16:33:01 +02:00
sbus
scsi scsi: qla2xxx: check UNLOADING before posting async work 2020-05-06 08:15:11 +02:00
sfi
sh
siox
slimbus
soc drivers: soc: xilinx: fix firmware driver Kconfig dependency 2020-05-02 08:48:46 +02:00
soundwire
spi spi: spi-fsl-dspi: Replace interruptible wait queue with a simple completion 2020-04-17 10:50:05 +02:00
spmi
ssb
staging PCI: Move Apex Edge TPU class quirk to fix BAR assignment 2020-05-02 08:48:50 +02:00
target scsi: target/iblock: fix WRITE SAME zeroing 2020-05-06 08:15:14 +02:00
tc
tee
thermal thermal: brcmstb_thermal: Do not use DT coefficients 2020-03-05 16:43:50 +01:00
thunderbolt thunderbolt: Prevent crash if non-active NVMem file is read 2020-02-28 17:22:13 +01:00
tty Revert "serial: uartps: Register own uart console and driver structures" 2020-04-29 16:33:24 +02:00
uio
usb usb: gadget: udc: atmel: Fix vbus disconnect handling 2020-05-02 08:48:43 +02:00
vfio vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn() 2020-05-06 08:15:14 +02:00
vhost vhost: Check docket sk_family instead of call getname 2020-03-05 16:43:44 +01:00
video fbmem: Adjust indentation in fb_prepare_logo and fb_blank 2020-04-23 10:36:43 +02:00
virt
virtio virtio_ring: Fix mem leak with vring_new_virtqueue() 2020-03-18 07:17:55 +01:00
visorbus
vlynq
vme
w1
watchdog watchdog: reset last_hw_keepalive time at start 2020-04-29 16:32:57 +02:00
xen xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status 2020-05-02 08:48:57 +02:00
zorro
Kconfig
Makefile