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Christophe JAILLET 0a46781c89 dmaengine: mcf-edma: Fix a potential un-allocated memory access 
When 'mcf_edma' is allocated, some space is allocated for a
flexible array at the end of the struct. 'chans' item are allocated, that is
to say 'pdata->dma_channels'.

Then, this number of item is stored in 'mcf_edma->n_chans'.

A few lines later, if 'mcf_edma->n_chans' is 0, then a default value of 64
is set.

This ends to no space allocated by devm_kzalloc() because chans was 0, but
64 items are read and/or written in some not allocated memory.

Change the logic to define a default value before allocating the memory.

Fixes: e7a3ff92eaf1 ("dmaengine: fsl-edma: add ColdFire mcf5441x edma support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/f55d914407c900828f6fad3ea5fa791a5f17b9a4.1685172449.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2023-08-07 00:01:29 +05:30
..
accel
drm changes for 6.5-rc1:
2023-06-29 11:00:17 -07:00
accessibility
…
acpi
More ACPI updates for 6.5-rc1
2023-07-06 22:25:06 -07:00
amba
…
android
…
ata
driver core changes for 6.5-rc1
2023-07-03 12:56:23 -07:00
atm
…
auxdisplay
drm changes for 6.5-rc1:
2023-06-29 11:00:17 -07:00
base
driver core changes for 6.5-rc1
2023-07-03 12:56:23 -07:00
bcma
…
block
Networking changes for 6.5.
2023-06-28 16:43:10 -07:00
bluetooth
Including fixes from bluetooth, bpf and wireguard.
2023-07-05 15:44:45 -07:00
bus
SoC fixes for 6.5, part 1
2023-07-06 09:56:53 -07:00
cdrom
cdrom/gdrom: Fix build error
2023-06-29 08:09:31 -06:00
cdx
…
char
virtio: features, fixes, cleanups
2023-07-03 15:38:26 -07:00
clk
Another set of clk driver updates and fixes for the merge window. The
2023-07-04 11:07:45 -07:00
clocksource
RISC-V Patches for the 6.5 Merge Window, Part 1
2023-06-30 09:37:26 -07:00
comedi
comedi: make all 'class' structures const
2023-06-23 10:29:02 +02:00
connector
…
counter
…
cpufreq
More power management updates for 6.5-rc1
2023-07-04 11:22:50 -07:00
cpuidle
…
crypto
s390 updates for 6.5 merge window part 2
2023-07-06 13:18:30 -07:00
cxl
cxl: Fix one kernel-doc comment
2023-06-29 16:03:58 -07:00
dax
dax: enable dax fault handler to report VM_FAULT_HWPOISON
2023-06-26 07:54:23 -06:00
dca
…
devfreq
…
dio
…
dma
dmaengine: mcf-edma: Fix a potential un-allocated memory access
2023-08-07 00:01:29 +05:30
dma-buf
drm changes for 6.5-rc1:
2023-06-29 11:00:17 -07:00
edac
- Add initial support for RAS hardware found on AMD server GPUs (MI200).
2023-06-26 15:09:18 -07:00
eisa
…
extcon
…
firewire
firewire: net: fix use after free in fwnet_finish_incoming_packet()
2023-06-24 14:03:46 +09:00
firmware
Char/Misc and other driver subsystem updates for 6.5-rc1
2023-07-03 12:46:47 -07:00
fpga
Char/Misc and other driver subsystem updates for 6.5-rc1
2023-07-03 12:46:47 -07:00
fsi
…
gnss
…
gpio
Pin control changes for the v6.5 kernel cycle:
2023-06-30 14:57:19 -07:00
gpu
drm fixes for 6.5-rc1
2023-07-06 22:42:54 -07:00
greybus
…
hid
drm changes for 6.5-rc1:
2023-06-29 11:00:17 -07:00
hsi
…
hte
…
hv
…
hwmon
driver core changes for 6.5-rc1
2023-07-03 12:56:23 -07:00
hwspinlock
…
hwtracing
Char/Misc and other driver subsystem updates for 6.5-rc1
2023-07-03 12:46:47 -07:00
i2c
Part 2 of I2C patches for 6.5
2023-07-08 12:28:00 -07:00
i3c
…
idle
intel_idle: Add __init annotation to matchup_vm_state_with_baremetal()
2023-06-28 19:09:55 +02:00
iio
driver core changes for 6.5-rc1
2023-07-03 12:56:23 -07:00
infiniband
v6.5 merge window RDMA pull request
2023-06-29 21:01:17 -07:00
input
ARM: SoC changes for 6.5
2023-06-29 15:28:33 -07:00
interconnect
…
iommu
iommufd for 6.5
2023-06-29 20:57:27 -07:00
ipack
…
irqchip
RISC-V Patches for the 6.5 Merge Window, Part 1
2023-06-30 09:37:26 -07:00
isdn
…
leds
- New Drivers
2023-07-03 11:26:05 -07:00
macintosh
…
mailbox
mailbox: ti-msgmgr: Fill non-message tx data fields with 0x0
2023-06-30 17:35:45 -05:00
mcb
…
md
hardening fixes for v6.5-rc1
2023-07-08 12:08:39 -07:00
media
media updates for v6.5-rc1
2023-07-05 10:42:32 -07:00
memory
asm-generic updates for 6.5
2023-07-06 10:06:04 -07:00
memstick
…
message
…
mfd
- New Drivers
2023-07-03 10:55:04 -07:00
misc
Char/Misc and other driver subsystem updates for 6.5-rc1
2023-07-03 12:46:47 -07:00
mmc
mmc: Revert "mmc: core: Allow mmc_start_host() synchronously detect a card"
2023-06-30 14:06:51 +02:00
most
…
mtd
Core MTD changes:
2023-06-28 14:02:03 -07:00
mux
…
net
Fixes for pci_clean_master, error handling in driver inits, and various
2023-07-09 09:35:51 -07:00
nfc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2023-06-22 18:40:38 -07:00
ntb
ntb: hw: amd: Fix debugfs_create_dir error checking
2023-07-08 13:55:44 -04:00
nubus
…
nvdimm
dax: enable dax fault handler to report VM_FAULT_HWPOISON
2023-06-26 07:54:23 -06:00
nvme
Including fixes from bluetooth, bpf and wireguard.
2023-07-05 15:44:45 -07:00
nvmem
…
of
Devicetree updates for v6.5:
2023-06-29 14:58:26 -07:00
opp
OPP: Properly propagate error along when failing to get icc_path
2023-06-27 07:35:14 +05:30
parisc
parisc: Move init function declarations into header file
2023-06-30 17:14:15 +02:00
parport
Char/Misc and other driver subsystem updates for 6.5-rc1
2023-07-03 12:46:47 -07:00
pci
Fixes for pci_clean_master, error handling in driver inits, and various
2023-07-09 09:35:51 -07:00
pcmcia
…
peci
…
perf
cxl for v6.5
2023-07-01 08:58:41 -07:00
phy
phy-for-6.5-v2
2023-07-05 21:38:13 -07:00
pinctrl
Pin control changes for the v6.5 kernel cycle:
2023-06-30 14:57:19 -07:00
platform
USB / Thunderbolt driver updates for 6.5-rc1
2023-07-03 13:23:10 -07:00
pnp
…
power
power supply and reset changes for the 6.5 series
2023-07-03 17:23:16 -07:00
powercap
ARM: SoC drivers for 6.5
2023-06-29 15:22:19 -07:00
pps
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ps3
…
ptp
ptp: Make max_phase_adjustment sysfs device attribute invisible when not supported
2023-07-03 13:17:25 -07:00
pwm
pwm: Changes for v6.5-rc1
2023-07-05 12:55:06 -07:00
rapidio
…
ras
…
regulator
regulator: Fix for v6.5
2023-07-06 19:20:23 -07:00
remoteproc
remoteproc updates for v6.5
2023-07-03 17:03:05 -07:00
reset
ARM: SoC drivers for 6.5
2023-06-29 15:22:19 -07:00
rpmsg
…
rtc
RTC for 6.5
2023-07-03 10:43:10 -07:00
s390
s390 updates for 6.5 merge window part 2
2023-07-06 13:18:30 -07:00
sbus
oradax: make 'cl' a static const structure
2023-06-23 10:27:02 +02:00
scsi
SCSI misc on 20230708
2023-07-08 12:35:18 -07:00
sh
…
siox
…
slimbus
…
soc
USB / Thunderbolt driver updates for 6.5-rc1
2023-07-03 13:23:10 -07:00
soundwire
soundwire: stream: Make master_list ordered to prevent deadlocks
2023-06-21 16:31:45 +05:30
spi
spi: Fixes for v6.5
2023-07-06 19:24:11 -07:00
spmi
…
ssb
…
staging
media updates for v6.5-rc1
2023-07-05 10:42:32 -07:00
target
SCSI misc on 20230708
2023-07-08 12:35:18 -07:00
tc
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tee
ARM: SoC drivers for 6.5
2023-06-29 15:22:19 -07:00
thermal
Thermal control updates for 6.5-rc1
2023-06-26 19:41:26 -07:00
thunderbolt
…
tty
TTY/Serial driver updates for 6.5-rc1.
2023-07-03 13:14:58 -07:00
ufs
SCSI misc on 20230708
2023-07-08 12:35:18 -07:00
uio
…
usb
USB / Thunderbolt driver updates for 6.5-rc1
2023-07-03 13:23:10 -07:00
vdpa
virtio: features, fixes, cleanups
2023-07-03 15:38:26 -07:00
vfio
VFIO updates for v6.5-rc1
2023-06-30 15:22:09 -07:00
vhost
virtio: features, fixes, cleanups
2023-07-03 15:38:26 -07:00
video
- New Functionality
2023-07-03 11:31:01 -07:00
virt
workqueue: Ordered workqueue creation cleanups
2023-06-27 16:46:06 -07:00
virtio
virtio: allow caller to override device DMA mask in vp_modern
2023-06-27 10:47:08 -04:00
vlynq
…
w1
…
watchdog
watchdog: sp5100_tco: support Hygon FCH/SCH (Server Controller Hub)
2023-06-26 14:30:07 +02:00
xen
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
zorro
…
Kconfig
…
Makefile
…