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eda97cb095
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Peter Ujfalusi eda97cb095 dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available 
If the router_xlate can not find the controller in the available DMA
devices then it should return with -EPORBE_DEFER in a same way as the
of_dma_request_slave_channel() does.

The issue can be reproduced if the event router is registered before the
DMA controller itself and a driver would request for a channel before the
controller is registered.
In of_dma_request_slave_channel():
1. of_dma_find_controller() would find the dma_router
2. ofdma->of_dma_xlate() would fail and returned NULL
3. -ENODEV is returned as error code

with this patch we would return in this case the correct -EPROBE_DEFER and
the client can try to request the channel later.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20210717190021.21897-1-peter.ujfalusi@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-28 12:54:50 +05:30
..
accessibility TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
acpi More ACPI updates for 5.14-rc1 2021-07-07 13:30:01 -07:00
amba
android
ata ARM: SoC changes for 5.14 2021-07-10 09:22:44 -07:00
atm Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
auxdisplay
base More power management updates for 5.14-rc1 2021-07-07 13:22:59 -07:00
bcma
block block-5.14-2021-07-08 2021-07-09 12:05:33 -07:00
bluetooth TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
bus ARM: Drivers for 5.14 2021-07-10 09:46:20 -07:00
cdrom block: remove REQ_OP_SCSI_{IN,OUT} 2021-06-30 15:34:19 -06:00
char ARM: SoC changes for 5.14 2021-07-10 09:22:44 -07:00
clk The second batch of clk driver code for -rc1 2021-07-08 12:12:22 -07:00
clocksource This round has a diffstat dominated by Qualcomm clk drivers. Honestly though 2021-07-01 13:26:16 -07:00
comedi Staging / IIO driver patches for 5.14-rc1 2021-07-05 14:01:53 -07:00
connector
counter
cpufreq Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2021-07-01 14:25:43 +02:00
cpuidle - Add support for the Qcom MSM8226 (Bartosz Dudziak) 2021-06-30 14:56:51 +02:00
crypto ARM: SoC changes for 5.14 2021-07-10 09:22:44 -07:00
cxl
dax fs: remove noop_set_page_dirty() 2021-06-29 10:53:48 -07:00
dca
devfreq
dio
dma dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available 2021-07-28 12:54:50 +05:30
dma-buf
edac Merge branch 'akpm' (patches from Andrew) 2021-07-02 12:08:10 -07:00
eisa
extcon Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
firewire Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
firmware ARM: Drivers for 5.14 2021-07-10 09:46:20 -07:00
fpga
fsi
gnss
gpio - Core Frameworks 2021-07-05 12:10:34 -07:00
gpu drm fixes for 5.14-rc1 2021-07-08 12:28:15 -07:00
greybus
hid Merge branch 'for-5.14/multitouch' into for-linus 2021-06-30 09:15:15 +02:00
hsi
hv Merge branch 'akpm' (patches from Andrew) 2021-07-02 12:08:10 -07:00
hwmon Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
hwspinlock
hwtracing Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
i2c Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2021-07-04 11:47:18 -07:00
i3c I3C for 5.14 2021-07-10 11:53:06 -07:00
idle
iio Staging / IIO driver patches for 5.14-rc1 2021-07-05 14:01:53 -07:00
infiniband Tracing updates for 5.14: 2021-07-03 11:13:22 -07:00
input This pull request contains the following changes for UML: 2021-07-09 10:19:13 -07:00
interconnect
iommu ARM: Drivers for 5.14 2021-07-10 09:46:20 -07:00
ipack TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
irqchip irqchip fixes for 5.14, take #1 2021-07-09 15:35:13 +02:00
isdn TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
leds This contains quite a lot of fixes, with more fixes in my inbox that 2021-07-03 11:57:42 -07:00
lightnvm
macintosh
mailbox mbox: add polarfire soc system controller mailbox 2021-06-26 12:06:48 -05:00
mcb
md - Various DM persistent-data library improvements and fixes that 2021-06-30 18:19:39 -07:00
media Driver core changes for 5.14-rc1 2021-07-05 13:51:41 -07:00
memory
memstick for-5.14/block-2021-06-29 2021-06-30 12:12:56 -07:00
message
mfd Driver core changes for 5.14-rc1 2021-07-05 13:51:41 -07:00
misc TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
mmc block-5.14-2021-07-08 2021-07-09 12:05:33 -07:00
most
mtd This pull request contains the following changes for UBIFS: 2021-07-09 10:10:47 -07:00
mux
net ARM: SoC changes for 5.14 2021-07-10 09:22:44 -07:00
nfc
ntb
nubus
nvdimm cxl for 5.14 2021-07-04 11:55:13 -07:00
nvme block-5.14-2021-07-08 2021-07-09 12:05:33 -07:00
nvmem Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
of Devicetree updates for v5.14: 2021-07-03 10:54:08 -07:00
opp
parisc kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
parport
pci pci-v5.14-fixes-1 2021-07-10 11:57:57 -07:00
pcmcia
perf
phy USB / Thunderbolt patches for 5.14-rc1 2021-07-05 14:16:22 -07:00
pinctrl This is the bulk of pin control changes for the v5.14 kernel: 2021-07-01 16:57:14 -07:00
platform Driver core changes for 5.14-rc1 2021-07-05 13:51:41 -07:00
pnp Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
power power supply and reset changes for the v5.14 series 2021-07-07 13:17:48 -07:00
powercap
pps
ps3
ptp ptp: Set lookup cookie when creating a PTP PPS source. 2021-06-29 11:29:37 -07:00
pwm pwm: Remove redundant assignment to pointer pwm 2021-07-07 21:43:32 +02:00
rapidio
ras
regulator - Core Frameworks 2021-07-05 12:10:34 -07:00
remoteproc remoteproc updates for v5.14 2021-07-07 10:50:03 -07:00
reset ARM: Drivers for 5.14 2021-07-10 09:46:20 -07:00
rpmsg
rtc RTC for 5.14 2021-07-10 16:19:10 -07:00
s390 s390 updates for the 5.14 merge window #2 2021-07-10 10:46:14 -07:00
sbus
scsi SCSI misc on 20210711 2021-07-11 10:59:53 -07:00
sh
siox
slimbus
soc ARM: Drivers for 5.14 2021-07-10 09:46:20 -07:00
soundwire Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
spi Merge remote-tracking branch 'spi/for-5.14' into spi-next 2021-06-25 14:08:26 +01:00
spmi spmi: hisi-spmi-controller: move driver from staging 2021-06-25 10:02:05 +02:00
ssb
staging TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
target block-5.14-2021-07-08 2021-07-09 12:05:33 -07:00
tc
tee fallthrough fixes for Clang for 5.14-rc1 2021-06-28 20:03:38 -07:00
thermal - Add rk3568 sensor support (Finley Xiao) 2021-07-10 11:43:25 -07:00
thunderbolt USB / Thunderbolt patches for 5.14-rc1 2021-07-05 14:16:22 -07:00
tty This pull request contains the following changes for UML: 2021-07-09 10:19:13 -07:00
uio
usb USB / Thunderbolt patches for 5.14-rc1 2021-07-05 14:16:22 -07:00
vdpa vp_vdpa: allow set vq state to initial state after reset 2021-07-08 07:49:02 -04:00
vfio VFIO update for v5.14-rc1 2021-07-03 11:49:33 -07:00
vhost vdpa: support packed virtqueue for set/get_vq_state() 2021-07-08 07:49:01 -04:00
video This pull request contains the following changes for UML: 2021-07-09 10:19:13 -07:00
virt
virtio virtio,vhost,vdpa: features, fixes 2021-07-09 11:06:29 -07:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.14-rc1 tag 2021-07-07 12:57:46 -07:00
xen xen: branch for v5.14-rc1 2021-07-07 11:07:13 -07:00
zorro
Kconfig
Makefile hyperv-next for 5.14 2021-06-29 11:21:35 -07:00