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linux/drivers/dma
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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
..
bestcomm
dmaengine: bestcomm: Use of_address_to_resource()
2023-03-31 18:17:06 +05:30
dw
dmaengine: dw: Move check for paused channel to dwc_get_residue()
2023-02-16 18:45:48 +05:30
dw-axi-dmac
dmaengine: dw-axi-dmac: Don't set chancnt
2023-05-24 12:24:32 +05:30
dw-edma
dmaengine: dw-edma: Add HDMA DebugFS support
2023-05-24 12:20:45 +05:30
fsl-dpaa2-qdma
bus: fsl-mc: Make remove function return void
2023-05-30 18:58:43 -05:00
hsu
dmaengine: hsu: Include headers we are direct user of
2022-09-04 22:49:35 +05:30
idxd
dmaengine: idxd: Fix passing freed memory in idxd_cdev_open()
2023-05-17 12:15:09 +05:30
ioat
dmaengine: ioat: Free up __cleanup() name
2023-06-26 11:14:18 +02:00
ipu
dmaengine: remove MODULE_LICENSE in non-modules
2023-04-13 13:13:51 -07:00
lgm
dmaengine: lgm: Move DT parsing after initialization
2023-01-18 15:32:16 +05:30
mediatek
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
ppc4xx
dmaengine: ppc4xx: Convert to use sysfs_emit()/sysfs_emit_at() APIs
2023-01-18 17:43:47 +05:30
ptdma
dmaengine updates for v6.3
2023-02-24 17:18:54 -08:00
qcom
dmaengine: hidma: Don't set chancnt
2023-05-24 12:24:32 +05:30
sf-pdma
dmaengine: sf-pdma: pdma_desc memory leak fix
2023-02-16 18:45:48 +05:30
sh
dmaengine updates for v6.4
2023-05-03 11:11:56 -07:00
ti
dmaengine updates for v6.5
2023-07-06 09:48:31 -07:00
xilinx
dmaengine: xilinx: xdma: Fix Judgment of the return value
2023-07-12 22:22:37 +05:30
acpi-dma.c
dmaengine: acpi: Check for errors from acpi_register_gsi() separately
2021-08-06 21:48:11 +05:30
altera-msgdma.c
dmaengine: altera-msgdma: Fixed some inconsistent function name descriptions
2022-07-06 22:00:06 +05:30
amba-pl08x.c
dmaengine: pl08x: Fix double word
2022-09-29 12:24:16 +05:30
apple-admac.c
dmaengine: apple-admac: Fix 'current_tx' not getting freed
2023-03-31 18:17:21 +05:30
at_hdmac.c
dmaengine: at_hdmac: Extend the Flow Controller bitfield to three bits
2023-05-24 11:20:28 +05:30
at_xdmac.c
dmaengine: at_xdmac: fix potential Oops in at_xdmac_prep_interleaved()
2023-05-19 16:54:04 +05:30
bcm2835-dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
bcm-sba-raid.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_30.RULE (part 2)
2022-06-10 14:51:35 +02:00
dma-axi-dmac.c
dmaengine: axi-dmac: Don't set chancnt
2023-05-24 12:24:32 +05:30
dma-jz4780.c
dmaengine: JZ4780: Add support for the JZ4755.
2022-10-19 19:13:16 +05:30
dmaengine.c
dmaengine: Actually use devm_add_action_or_reset()
2023-03-17 23:13:42 +05:30
dmaengine.h
dmaengine: dmaengine_desc_callback_valid(): Check for callback_result
2021-10-25 09:42:56 +05:30
dmatest.c
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
ep93xx_dma.c
dmaengine: remove MODULE_LICENSE in non-modules
2023-04-13 13:13:51 -07:00
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: remove redundant assignment to pointer last_sg
2022-07-01 22:09:16 +05:30
fsl-edma-common.h
dmaengine: fsl-edma: support edma memcpy
2021-10-28 22:56:24 +05:30
fsl-edma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
fsl-qdma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
fsldma.c
dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function
2021-01-12 18:00:39 +05:30
fsldma.h
fsldma: fix very broken 32-bit ppc ioread64 functionality
2020-08-29 13:50:56 -07:00
hisi_dma.c
dmaengine: hisilicon: Dump regs to debugfs
2022-09-04 22:42:35 +05:30
idma64.c
dmaengine: idma64: Update bytes_transferred field
2023-02-16 18:45:48 +05:30
idma64.h
…
img-mdc-dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
imx-dma.c
dmaengine: imx-dma: Remove a redundant memset() call
2023-03-17 23:10:46 +05:30
imx-sdma.c
dmaengine updates for v6.3
2023-02-24 17:18:54 -08:00
k3dma.c
dmaengine: k3dma: use the correct HiSilicon copyright
2021-04-12 17:14:53 +05:30
Kconfig
idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM
2023-07-12 22:22:37 +05:30
lpc18xx-dmamux.c
…
Makefile
dmaengine: remove s3c24xx driver
2023-01-16 09:26:06 +01:00
mcf-edma.c
dmaengine: mcf-edma: Fix a potential un-allocated memory access
2023-08-07 00:01:29 +05:30
milbeaut-hdmac.c
dmaengine: milbeaut-hdmac: Prefer kcalloc over open coded arithmetic
2021-10-25 12:12:13 +05:30
milbeaut-xdmac.c
dmaengine: milbeaut-xdmac: Fix a resource leak in the error handling path of the probe function
2020-12-29 10:08:00 +05:30
mmp_pdma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
mmp_tdma.c
dmaengine updates for v6.3
2023-02-24 17:18:54 -08:00
moxart-dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
mpc512x_dma.c
dmaengine: mpc512x: Fix fall-through warning for Clang
2021-07-14 11:05:55 -05:00
mv_xor_v2.c
dmaengine updates for v6.4
2023-05-03 11:11:56 -07:00
mv_xor.c
dmaengine: mv_xor: drop of_match_ptr from of_device_id table
2020-11-24 23:02:20 +05:30
mv_xor.h
…
mxs-dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
nbpfaxi.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
of-dma.c
dmaengine: Use of_property_present() for testing DT property presence
2023-03-17 23:11:42 +05:30
owl-dma.c
dmaengine: owl: fix typo in comment
2022-07-06 10:50:43 +05:30
pch_dma.c
dmaengine: pch_dma: Remove usage of the deprecated "pci-dma-compat.h" API
2022-01-08 22:16:44 +05:30
pl330.c
dmaengine: pl330: rename _start to prevent build error
2023-05-24 11:16:38 +05:30
plx_dma.c
dmaengine: plx_dma: Don't set chancnt
2023-05-24 12:24:32 +05:30
pxa_dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
sa11x0-dma.c
dmaengine: sa11x0: Mark PM functions as __maybe_unused
2021-10-26 10:55:07 +05:30
sprd-dma.c
dmaengine: sprd: Don't set chancnt
2023-05-24 12:24:32 +05:30
st_fdma.c
dmaengine: st_fdma: fix MODULE_ALIAS
2021-12-13 13:18:48 +05:30
st_fdma.h
…
ste_dma40_ll.c
dmaengine: ste_dma40: Remove platform data
2023-05-16 23:00:19 +05:30
ste_dma40_ll.h
…
ste_dma40.c
dmaengine: ste_dma40: use proper format string for resource_size_t
2023-05-19 16:17:29 +05:30
ste_dma40.h
dmaengine: ste_dma40: Remove platform data
2023-05-16 23:00:19 +05:30
stm32-dma.c
dmaengine: stm32-dma: fix potential race between pause and resume
2022-11-08 10:43:56 +05:30
stm32-dmamux.c
dmaengine: stm32-mdma: remove MODULE_LICENSE in non-modules
2023-04-13 13:13:51 -07:00
stm32-mdma.c
dmaengine: stm32-mdma: remove MODULE_LICENSE in non-modules
2023-04-13 13:13:51 -07:00
sun4i-dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
sun6i-dma.c
dmaengine: drivers: Use devm_platform_ioremap_resource()
2023-01-18 22:16:47 +05:30
tegra20-apb-dma.c
dmaengine: tegra-apb: remove unused tdma_read function
2023-03-31 17:51:15 +05:30
tegra186-gpc-dma.c
dmaengine: tegra: Fix memory leak in terminate_all()
2023-01-18 22:18:38 +05:30
tegra210-adma.c
dmaengine updates for v6.3
2023-02-24 17:18:54 -08:00
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
…
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
2022-01-03 17:49:37 +05:30
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