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linux/drivers/dma
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Shawn.Shao 20d0a6d17e Add exception protection processing for vd in axi_chan_handle_err function 
commit 57054fe516 upstream.

Since there is no protection for vd, a kernel panic will be
triggered here in exceptional cases.

You can refer to the processing of axi_chan_block_xfer_complete function

The triggered kernel panic is as follows:

[   67.848444] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000060
[   67.848447] Mem abort info:
[   67.848449]   ESR = 0x96000004
[   67.848451]   EC = 0x25: DABT (current EL), IL = 32 bits
[   67.848454]   SET = 0, FnV = 0
[   67.848456]   EA = 0, S1PTW = 0
[   67.848458] Data abort info:
[   67.848460]   ISV = 0, ISS = 0x00000004
[   67.848462]   CM = 0, WnR = 0
[   67.848465] user pgtable: 4k pages, 48-bit VAs, pgdp=00000800c4c0b000
[   67.848468] [0000000000000060] pgd=0000000000000000, p4d=0000000000000000
[   67.848472] Internal error: Oops: 96000004 [#1] SMP
[   67.848475] Modules linked in: dmatest
[   67.848479] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.100-emu_x2rc+ #11
[   67.848483] pstate: 62000085 (nZCv daIf -PAN -UAO +TCO BTYPE=--)
[   67.848487] pc : axi_chan_handle_err+0xc4/0x230
[   67.848491] lr : axi_chan_handle_err+0x30/0x230
[   67.848493] sp : ffff0803fe55ae50
[   67.848495] x29: ffff0803fe55ae50 x28: ffff800011212200
[   67.848500] x27: ffff0800c42c0080 x26: ffff0800c097c080
[   67.848504] x25: ffff800010d33880 x24: ffff80001139d850
[   67.848508] x23: ffff0800c097c168 x22: 0000000000000000
[   67.848512] x21: 0000000000000080 x20: 0000000000002000
[   67.848517] x19: ffff0800c097c080 x18: 0000000000000000
[   67.848521] x17: 0000000000000000 x16: 0000000000000000
[   67.848525] x15: 0000000000000000 x14: 0000000000000000
[   67.848529] x13: 0000000000000000 x12: 0000000000000040
[   67.848533] x11: ffff0800c0400248 x10: ffff0800c040024a
[   67.848538] x9 : ffff800010576cd4 x8 : ffff0800c0400270
[   67.848542] x7 : 0000000000000000 x6 : ffff0800c04003e0
[   67.848546] x5 : ffff0800c0400248 x4 : ffff0800c4294480
[   67.848550] x3 : dead000000000100 x2 : dead000000000122
[   67.848555] x1 : 0000000000000100 x0 : ffff0800c097c168
[   67.848559] Call trace:
[   67.848562]  axi_chan_handle_err+0xc4/0x230
[   67.848566]  dw_axi_dma_interrupt+0xf4/0x590
[   67.848569]  __handle_irq_event_percpu+0x60/0x220
[   67.848573]  handle_irq_event+0x64/0x120
[   67.848576]  handle_fasteoi_irq+0xc4/0x220
[   67.848580]  __handle_domain_irq+0x80/0xe0
[   67.848583]  gic_handle_irq+0xc0/0x138
[   67.848585]  el1_irq+0xc8/0x180
[   67.848588]  arch_cpu_idle+0x14/0x2c
[   67.848591]  default_idle_call+0x40/0x16c
[   67.848594]  do_idle+0x1f0/0x250
[   67.848597]  cpu_startup_entry+0x2c/0x60
[   67.848600]  rest_init+0xc0/0xcc
[   67.848603]  arch_call_rest_init+0x14/0x1c
[   67.848606]  start_kernel+0x4cc/0x500
[   67.848610] Code: eb0002ff 9a9f12d6 f2fbd5a2 f2fbd5a3 (a94602c1)
[   67.848613] ---[ end trace 585a97036f88203a ]---

Signed-off-by: Shawn.Shao <shawn.shao@jaguarmicro.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230112055802.1764-1-shawn.shao@jaguarmicro.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-24 07:19:56 +01:00
..
bestcomm
dmaengine: bestcomm: fix system boot lockups
2022-09-23 14:16:56 +02:00
dw
dmaengine: dw: Make it dependent to HAS_IOMEM
2021-04-21 13:00:50 +02:00
dw-axi-dmac
Add exception protection processing for vd in axi_chan_handle_err function
2023-01-24 07:19:56 +01:00
dw-edma
dmaengine: dw-edma: Fix eDMA Rd/Wr-channels and DMA-direction semantics
2022-08-21 15:15:55 +02:00
fsl-dpaa2-qdma
dmaengine: fsl-dpaa2-qdma: Fix error return code in two functions
2021-06-23 14:42:40 +02:00
hsu
dmaengine: hsu: disable spurious interrupt
2021-03-04 11:37:55 +01:00
idxd
dmaengine: idxd: add missing callback function to support DMA_INTERRUPT
2022-06-14 18:32:47 +02:00
ioat
dmaengine: ioat: stop mod_timer from resurrecting deleted timer in __cleanup()
2022-10-26 13:25:39 +02:00
ipu
dmaengine: ipu: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
mediatek
dmaengine: mediatek:Fix PM usage reference leak of mtk_uart_apdma_alloc_chan_resources
2022-04-27 13:53:48 +02:00
ppc4xx
dmaengine: ppc4xx: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
qcom
dmaengine: QCOM_HIDMA_MGMT depends on HAS_IOMEM
2021-06-23 14:42:40 +02:00
sf-pdma
dmaengine: sf-pdma: Add multithread support for a DMA channel
2022-08-21 15:15:57 +02:00
sh
dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error"
2022-04-13 21:01:10 +02:00
ti
dmaengine: ti: k3-udma-private: Fix refcount leak bug in of_xudma_dev_get()
2022-09-28 11:10:29 +02:00
xilinx
dmaengine: xilinx_dma: Report error in case of dma_set_mask_and_coherent API failure
2022-10-15 07:55:52 +02:00
acpi-dma.c
dmaengine: acpi: Avoid comparison GSI with Linux vIRQ
2021-09-26 14:08:57 +02:00
altera-msgdma.c
dmaengine: altera-msgdma: fix kernel-doc style for tasklet
2020-10-08 15:18:37 +05:30
amba-pl08x.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
at_hdmac_regs.h
dmaengine: at_hdmac: Fix at_lli struct definition
2022-11-16 09:57:17 +01:00
at_hdmac.c
dmaengine: at_hdmac: Check return code of dma_async_device_register
2022-11-16 09:57:20 +01:00
at_xdmac.c
dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
2022-07-12 16:32:23 +02:00
bcm2835-dma.c
dmaengine: bcm2835: Drop local dma_parms
2020-09-11 17:42:12 +05:30
bcm-sba-raid.c
dmaengine: bcm-sba-raid: Replace zero-length array with flexible-array member
2020-02-13 20:15:35 +05:30
coh901318_lli.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
coh901318.c
dmaengine: coh901318: convert tasklets to use new tasklet_setup() API
2020-09-18 12:18:11 +05:30
coh901318.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
dma-axi-dmac.c
dmaengine: axi-dmac: Drop local dma_parms
2020-09-11 17:42:12 +05:30
dma-jz4780.c
dmaengine: dma-jz4780: Fix race in jz4780_dma_tx_status
2020-10-05 09:58:48 +05:30
dmaengine.c
dmaengine: Fix a double free in dma_async_device_register
2021-04-21 13:00:50 +02:00
dmaengine.h
dmaengine: dmaengine_desc_callback_valid(): Check for callback_result
2021-11-18 14:04:24 +01:00
dmatest.c
dmaengine: dmatest: Return boolean result directly in filter()
2020-09-22 20:18:41 +05:30
ep93xx_dma.c
dmaengine: ep93xx: convert tasklets to use new tasklet_setup() API
2020-09-18 12:18:11 +05:30
fsl_raid.c
dmaengine: fsl: remove bad channel update
2020-10-05 09:59:17 +05:30
fsl_raid.h
…
fsl-edma-common.c
dmaengine: fsl-edma: fix wrong tcd endianness for big-endian cpu
2020-07-06 14:49:22 +05:30
fsl-edma-common.h
dmaengine: fsl-edma-common: correct DSIZE_32BYTE
2020-07-06 10:24:49 +05:30
fsl-edma.c
dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler
2020-06-24 13:05:01 +05:30
fsl-qdma.c
dmaengine: fsl-qdma: check dma_set_mask return value
2021-07-20 16:05:38 +02:00
fsldma.c
dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function
2021-03-04 11:37:55 +01:00
fsldma.h
fsldma: fix very broken 32-bit ppc ioread64 functionality
2020-08-29 13:50:56 -07:00
hisi_dma.c
dmaengine: hisilicon: Add multi-thread support for a DMA channel
2022-10-26 13:25:34 +02:00
idma64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
idma64.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
img-mdc-dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422
2019-06-05 17:37:15 +02:00
imx-dma.c
dmaengine: imx-dma: configure the generic DMA type to make it work
2021-08-12 13:22:05 +02:00
imx-sdma.c
dmaengine: imx-sdma: Allow imx8m for imx7 FW revs
2022-07-12 16:32:22 +02:00
iop-adma.c
Merge branch 'topic/tasklet' into next
2020-10-01 10:18:59 +05:30
iop-adma.h
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
k3dma.c
dmaengine: k3dma: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
Kconfig
dmaengine: ioat: depends on !UML
2021-09-26 14:09:00 +02:00
lpc18xx-dmamux.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Makefile
misc: mic: remove the MIC drivers
2020-10-28 19:12:03 +01:00
mcf-edma.c
dmaengine: mcf-edma: Fix NULL pointer exception in mcf_edma_tx_handler
2020-06-24 13:06:15 +05:30
milbeaut-hdmac.c
dmaengine: Replace zero-length array with flexible-array
2020-06-15 23:08:30 -05:00
milbeaut-xdmac.c
dmaengine: milbeaut-xdmac: Fix a resource leak in the error handling path of the probe function
2021-01-17 14:17:02 +01:00
mmp_pdma.c
dmaengine: pxa/mmp: stop referencing config->slave_id
2022-01-27 10:54:07 +01:00
mmp_tdma.c
dmaengine: mmp: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
moxart-dma.c
dmaengine: Replace zero-length array with flexible-array
2020-06-15 23:08:30 -05:00
mpc512x_dma.c
dmaengine: mpc512x: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
mv_xor_v2.c
dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()
2022-11-16 09:57:12 +01:00
mv_xor.c
dmaengine: mv_xor: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
mv_xor.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
mxs-dma.c
dmaengine: mxs: use platform_driver_register
2022-10-30 09:41:18 +01:00
nbpfaxi.c
dmaengine: nbpfaxi: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
of-dma.c
dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available
2021-08-26 08:35:36 -04:00
owl-dma.c
dmaengine: owl-dma: Fix a resource leak in the remove function
2021-03-04 11:37:55 +01:00
pch_dma.c
dmaengine: pch_dma: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:06 +05:30
pl330.c
dmaengine: pl330: Fix lockdep warning about non-static key
2022-07-12 16:32:23 +02:00
plx_dma.c
dmaengine: plx_dma: add a missing put_device() on error path
2021-04-21 13:00:51 +02:00
pxa_dma.c
dmaengine: pxa_dma: use platform_get_irq_optional
2022-11-16 09:57:12 +01:00
s3c24xx-dma.c
dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too"
2020-01-23 17:03:25 +05:30
sa11x0-dma.c
dmaengine: sa11x0: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
sirf-dma.c
dmaengine: sirf-dma: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
sprd-dma.c
dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed
2022-08-25 11:38:17 +02:00
st_fdma.c
dmaengine: st_fdma: fix MODULE_ALIAS
2021-12-22 09:30:53 +01:00
st_fdma.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ste_dma40_ll.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
ste_dma40_ll.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
ste_dma40.c
dmaengine: stedma40: add missing iounmap() on error in d40_probe()
2021-06-23 14:42:40 +02:00
stm32-dma.c
dmaengine: stm32-dma: Fix PM usage counter imbalance in stm32 dma ops
2021-08-12 13:22:04 +02:00
stm32-dmamux.c
dmaengine: stm32-dmamux: Fix PM disable depth imbalance in stm32_dmamux_probe
2022-02-23 12:01:07 +01:00
stm32-mdma.c
dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler()
2022-06-09 10:21:20 +02:00
sun4i-dma.c
dmaengine: sun4i-dma: Demote obvious misuse of kerneldoc to standard comment blocks
2020-07-15 17:50:47 +05:30
sun6i-dma.c
dmaengine: sun6i: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
tegra20-apb-dma.c
dmaengine: tegra20: Fix runtime PM imbalance on error
2021-04-28 13:40:01 +02:00
tegra210-adma.c
dmaengine: tegra210-adma: Fix runtime PM imbalance on error
2020-06-24 15:11:39 +05:30
timb_dma.c
dmaengine: timb_dma: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
TODO
…
txx9dmac.c
dmaengine: txx9dmac: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
txx9dmac.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
uniphier-mdmac.c
dmaengine: uniphier-mdmac: replace zero-length array with flexible-array member
2020-02-13 20:15:57 +05:30
uniphier-xdmac.c
dmaengine: uniphier-xdmac: Fix type of address variables
2022-01-27 10:54:29 +01:00
virt-dma.c
dmaengine: virt-dma: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
virt-dma.h
dmaengine: virt-dma: Add missing locking around list operations
2019-12-26 10:04:18 +05:30
xgene-dma.c
dmaengine: xgene: convert tasklets to use new tasklet_setup() API
2020-09-18 12:19:07 +05:30
zx_dma.c
dmaengine: zx: remove redundant irqsave in hardIRQ
2020-09-18 12:30:50 +05:30