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linux/drivers
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Aleksei Sviridkin 0d80ba0a20 net: dsa: mt7530: leave the MDIO IRQ mappings to regmap-irq 
mt7530_remove_common() disposes the per-PHY interrupt mappings from
.remove, but the regmap-irq chip that owns the domain is devm-registered,
so its parent interrupt is only freed once .remove has returned. The
switch's own regmap-irq thread can therefore still dispatch on a mapping
that is already gone: irq_find_mapping() returns 0, irq_to_desc() returns
NULL and handle_nested_irq() locks desc->lock without checking it. The
attached PHYs have not given those interrupts back yet either, which the
kernel warns about a moment before the fault.

regmap_del_irq_chip() disposes the same mappings itself, after freeing the
parent interrupt and before removing the domain, so there is nothing left
for the driver to do here. Until it runs the descriptors stay alive, and a
late dispatch on one of them is harmless: dsa_unregister_switch() has freed
the PHY handlers by then, so handle_nested_irq() finds no action and
returns.

Fixes: 254f6b272e ("dsa: mt7530: Utilize REGMAP_IRQ for interrupt handling")
Signed-off-by: Aleksei Sviridkin <f@lex.la>
Link: https://patch.msgid.link/20260918015020.2518315-3-f@lex.la
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-09-24 08:16:53 -07:00
..
accel Merge drm/drm-fixes into drm-misc-fixes 2026-09-08 13:32:08 +02:00
accessibility
acpi treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
amba
android Char/Misc/IIO/etc driver update for 7.3-rc1 2026-08-25 09:38:50 -07:00
ata ata: libata-scsi: do not raise UA for storage element depopulation and restoration 2026-09-03 16:10:44 +02:00
atm
auxdisplay auxdisplay for v7.3-1 2026-08-24 08:15:59 -07:00
base kmalloc_obj conversions for v7.3-rc2 2026-09-05 20:45:18 -07:00
bcma
block block-7.3-20260911 2026-09-11 12:38:44 -07:00
bluetooth Bluetooth: btintel_pcie: validate device-supplied DMA indices 2026-09-21 09:37:20 -04:00
bus Char/Misc/IIO/etc driver update for 7.3-rc1 2026-08-25 09:38:50 -07:00
cache
cdrom
cdx
char virtio_console: do not free control-out buffers on remove 2026-09-07 18:54:02 -04:00
clk treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
clocksource hyperv-next for v7.3-rc1 2026-08-26 16:47:40 -07:00
comedi
connector
counter Char/Misc/IIO/etc driver update for 7.3-rc1 2026-08-25 09:38:50 -07:00
cpufreq Merge branch 'pm-cpufreq' 2026-09-10 20:16:37 +02:00
cpuidle cpuidle: dt_idle_genpd: kfree() the original name allocation 2026-09-01 17:28:56 +02:00
crypto treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
cxl
dax mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
dca
devfreq treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
dibs dibs: Unregister dibs_class after error 2026-09-04 16:12:24 -07:00
dio
dma treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
dma-buf kmalloc_obj conversions for v7.3-rc2 2026-09-05 20:45:18 -07:00
dpll dpll: use exact lookup for reference sync pin id 2026-09-21 17:19:42 -07:00
edac EDAC/altera: Use parent device for devres in altr_portb_setup() 2026-09-07 21:29:44 -07:00
eisa
extcon
firewire firewire updates for v7.3 2026-08-22 08:41:28 -07:00
firmware treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
fpga treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
fsi
fwctl rust: introduce abstractions for fwctl 2026-08-14 19:21:17 -03:00
gnss
gpib Char/Misc/IIO/etc driver update for 7.3-rc1 2026-08-25 09:38:50 -07:00
gpio gpio fixes for v7.3-rc4 2026-09-17 09:08:20 -07:00
gpu Rust fixes for v7.3 (2nd) 2026-09-13 09:28:28 -07:00
greybus
hid treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
hsi HSI changes for the 7.3 series 2026-08-21 12:01:23 -07:00
hte
hv treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
hwmon hwmon: (nct6694) do not expose enable on DTIN temperature channels 2026-09-09 18:16:35 -07:00
hwspinlock
hwtracing treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
i2c treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
i3c treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
idle Merge branch 'intel-idle-lpi' 2026-08-07 21:22:50 +02:00
iio treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
infiniband RDMA v7.3 first rc pull 2026-09-14 09:58:12 -07:00
input treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
interconnect This pull request contains the following interconnect updates for 2026-08-19 09:55:37 +02:00
iommu iommu/amd: Remove unused macro 2026-09-11 17:27:22 +02:00
ipack Char/Misc/IIO/etc driver update for 7.3-rc1 2026-08-25 09:38:50 -07:00
irqchip irqchip/gic-v5: Preserve ICC_CR0_EL1 state 2026-09-07 21:44:17 +02:00
leds LEDs for v7.3 2026-08-27 11:05:51 -07:00
macintosh
mailbox treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
mcb
md treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
media media: ipu-bridge: do not use the CVS device lookup for IVSC 2026-09-13 10:15:16 -07:00
memory * Raw NAND changes 2026-08-23 09:11:21 -07:00
memstick
message
mfd treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
misc Merge drm/drm-fixes into drm-misc-fixes 2026-09-01 09:38:51 +02:00
mmc MMC core: 2026-08-21 11:58:08 -07:00
most
mtd treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
mux
net net: dsa: mt7530: leave the MDIO IRQ mappings to regmap-irq 2026-09-24 08:16:53 -07:00
nfc nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() 2026-09-23 22:13:18 +02:00
ntb NTB: ntb_transport: Reject oversized TX buffers 2026-08-20 13:43:24 -07:00
nubus
nvdimm treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
nvme kmalloc_obj conversions for v7.3-rc2 2026-09-05 20:45:18 -07:00
nvmem Char/Misc/IIO/etc driver update for 7.3-rc1 2026-08-25 09:38:50 -07:00
of Devicetree fixes for v7.3, part 1: 2026-08-27 12:53:43 -07:00
opp OPP updates for 7.3-rc2 2026-09-09 19:03:00 +02:00
parisc parisc: eisa: Fix infinite loop when parsing invalid IRQ value 2026-08-18 11:43:05 +02:00
parport
pci treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
pcmcia
peci
perf perf: RISC-V: check cpu_hw_evt before dereference in overflow IRQ 2026-09-01 19:19:48 -06:00
phy Mostly the usual clk driver updates and new SoC additions plus non-critical 2026-08-26 11:14:30 -07:00
pinctrl Pin control bulk changes for kernel v7.3 2026-08-24 08:46:03 -07:00
platform platform-drivers-x86 for v7.3-2 2026-09-11 12:52:48 -07:00
pmdomain treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
pnp Merge branches 'acpi-numa', 'acpi-misc' and 'pnp' 2026-08-07 20:01:31 +02:00
power power sequencing fixes for v7.3-rc4 2026-09-17 09:40:25 -07:00
powercap More power management updates for 7.3-rc1 2026-08-26 14:13:26 -07:00
pps
ps3
ptp treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
pwm Driver core changes for 7.3-rc1 2026-08-19 10:42:18 -07:00
rapidio
ras - Mark the mpc85xx and ThunderX EDAC drivers as orphaned due to lack of 2026-08-31 20:10:39 -07:00
regulator regulator: pf1550: fix which regulator is notified 2026-09-07 18:08:38 +01:00
remoteproc
resctrl arm64 updates for 7.3 2026-08-18 11:57:17 -07:00
reset Mostly the usual clk driver updates and new SoC additions plus non-critical 2026-08-26 11:14:30 -07:00
rpmsg
rtc RTC for 7.3 2026-08-28 09:53:43 -07:00
s390 Nothing too exciting, usual stream of fixes. 2026-09-10 14:07:48 -07:00
sbus
scsi kmalloc_obj conversions for v7.3-rc2 2026-09-05 20:45:18 -07:00
sh
siox
slimbus
soc treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
soundwire soundwire updates for 7.3 2026-08-24 12:16:16 -07:00
spi treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
spmi
ssb
staging Staging driver fixes for 7.3-rc2 2026-09-06 09:49:06 -07:00
target scsi: target: iscsi: Reserve a terminator byte for the login payload 2026-09-01 22:08:31 -04:00
tc
tee treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
thermal thermal: sysfs: switch to use scnprintf() to suppress truncation warning 2026-09-04 15:49:46 +02:00
thunderbolt treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
tty fbdev fixes for 7.3-rc3: 2026-09-12 08:06:04 -07:00
ufs kmalloc_obj conversions for v7.3-rc2 2026-09-05 20:45:18 -07:00
uio
usb USB fixes for 7.3-rc2 2026-09-06 08:50:20 -07:00
vdpa vduse: return compat ioctl results directly 2026-09-08 03:58:27 -04:00
vfio mm.git review status for mm-hotfixes-stable..mm-stable 2026-08-20 18:17:08 -07:00
vhost vhost: invalidate vring access on IOTLB transitions 2026-09-07 18:54:04 -04:00
video fbdev fixes for 7.3-rc3: 2026-09-12 08:06:04 -07:00
virt arm64 updates for 7.3 2026-08-18 11:57:17 -07:00
virtio virtio_input: stop callbacks before unregistering input device 2026-09-07 18:54:04 -04:00
w1
watchdog watchdog: msc313e: Sync timeout value if WDT was running at boot 2026-09-09 14:18:25 -07:00
xen treewide: refresh kmalloc_obj() conversions 2026-09-04 21:37:00 -07:00
zorro
Kconfig
Makefile