redonkable/alistair23-linux
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alistair23-linux/drivers
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Krzysztof Kozlowski 8995aa3d16 dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler 
On Toradex Colibri VF50 (Vybrid VF5xx) with fsl-edma driver NULL pointer
exception happens occasionally on serial output initiated by login
timeout.

This was reproduced only if kernel was built with significant debugging
options and EDMA driver is used with serial console.

Issue looks like a race condition between interrupt handler
fsl_edma_tx_handler() (called as a result of fsl_edma_xfer_desc()) and
terminating the transfer with fsl_edma_terminate_all().

The fsl_edma_tx_handler() handles interrupt for a transfer with already
freed edesc and idle==true.

The mcf-edma driver shares design and lot of code with fsl-edma.  It
looks like being affected by same problem.  Fix this pattern the same
way as fix for fsl-edma driver.

Fixes: e7a3ff92ea ("dmaengine: fsl-edma: add ColdFire mcf5441x edma support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Robin Gong <yibin.gong@nxp.com>
Link: https://lore.kernel.org/r/1591881665-25592-1-git-send-email-krzk@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-06-24 13:06:15 +05:30
..
accessibility treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
acpi libnvdimm for 5.8 2020-06-13 13:04:36 -07:00
amba ARM: SoC changes for v5.8 2020-06-04 19:47:11 -07:00
android treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ata treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
atm treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
auxdisplay treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
base linux-kselftest-kunit-5.8-rc1 2020-06-09 10:04:47 -07:00
bcma
block Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
bus Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
cdrom Merge branch 'work.sysctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:05:54 -07:00
char treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
clk treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
clocksource clocksource/drivers/timer-riscv: Use per-CPU timer interrupt 2020-06-09 19:11:22 -07:00
connector treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
counter
cpufreq treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
cpuidle - Add the hwmon support on the i.MX SC (Anson Huang) 2020-06-12 14:10:21 -07:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
dax device-dax: add memory via add_memory_driver_managed() 2020-06-04 19:06:23 -07:00
dca
devfreq
dio
dma dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler 2020-06-24 13:06:15 +05:30
dma-buf treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
edac Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
eisa treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
extcon
firewire
firmware Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
fpga Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
fsi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
gnss treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
gpio treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
gpu Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
greybus treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
hid treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
hsi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
hv hyperv-next for 5.8 2020-06-03 15:00:05 -07:00
hwmon Merge branch 'x86/entry' into ras/core 2020-06-11 15:17:57 +02:00
hwspinlock
hwtracing Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
i2c Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
i3c
ide treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
idle
iio treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
infiniband treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
input treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
interconnect More power management updates for 5.8-rc1 2020-06-10 14:04:39 -07:00
iommu Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
ipack treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
irqchip clocksource/drivers/timer-riscv: Use per-CPU timer interrupt 2020-06-09 19:11:22 -07:00
isdn treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
leds LEDs pull request for 5.8-rc1. 2020-06-04 11:03:45 -07:00
lightnvm for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
macintosh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
mailbox mailbox: qcom: Add ipq6018 apcs compatible 2020-06-10 22:43:57 -05:00
mcb
md treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
media Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
memory
memstick
message treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
mfd treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
misc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
mmc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
most
mtd This pull request contains a single change for UBI: 2020-06-10 13:24:40 -07:00
mux
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-06-13 16:27:13 -07:00
nfc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ntb NTB: perf: Fix race condition when run with ntb_test 2020-06-05 20:02:09 -04:00
nubus
nvdimm libnvdimm for 5.8 2020-06-13 13:04:36 -07:00
nvme Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
nvmem
of Driver core patches for 5.8-rc1 2020-06-07 10:53:36 -07:00
opp treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
oprofile mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
parisc
parport treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
pci Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
pcmcia treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
perf arm64 merge window fixes for -rc1 2020-06-11 12:53:23 -07:00
phy
pinctrl This is the bulk of pin control changes for the v5.8 2020-06-07 16:13:43 -07:00
platform Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
pnp treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
power power supply and reset changes for the v5.8 series 2020-06-10 11:28:35 -07:00
powercap Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
pps treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ps3
ptp treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
pwm pwm: Add missing "CONFIG_" prefix 2020-06-04 19:09:28 +02:00
rapidio treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ras
regulator Merge remote-tracking branch 'regulator/for-5.8' into regulator-linus 2020-06-01 13:01:44 +01:00
remoteproc remoteproc updates for v5.8 2020-06-08 13:01:08 -07:00
reset Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
rpmsg remoteproc updates for v5.8 2020-06-08 13:01:08 -07:00
rtc RTC for 5.8 2020-06-07 16:11:23 -07:00
s390 s390 updates for the 5.8 merge window 2020-06-08 12:05:31 -07:00
sbus treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
scsi Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
sfi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
sh
siox
slimbus
soc treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
soundwire
spi Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
spmi
ssb
staging Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
target Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
tc
tee mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
thermal - Add the hwmon support on the i.MX SC (Anson Huang) 2020-06-12 14:10:21 -07:00
thunderbolt USB/PHY driver updates for 5.8-rc1 2020-06-07 09:42:16 -07:00
tty treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
uio
usb Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
vdpa ifcvf: implement config interrupt in IFCVF 2020-06-06 16:26:47 -04:00
vfio kernel: better document the use_mm/unuse_mm API contract 2020-06-10 19:14:18 -07:00
vhost Kbuild updates for v5.8 (2nd) 2020-06-13 13:29:16 -07:00
video treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
virt treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
virtio treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
visorbus treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
vlynq
vme treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
w1 treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
watchdog treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
xen The X86 entry, exception and interrupt code rework 2020-06-13 10:05:47 -07:00
zorro treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Kconfig
Makefile