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linux/drivers/dma
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Fenghua Yu 9eb15f24a0 dmaengine: idxd: Avoid unnecessary destruction of file_ida 
[ Upstream commit 76e43fa6a4 ]

file_ida is allocated during cdev open and is freed accordingly
during cdev release. This sequence is guaranteed by driver file
operations. Therefore, there is no need to destroy an already empty
file_ida when the WQ cdev is removed.

Worse, ida_free() in cdev release may happen after destruction of
file_ida per WQ cdev. This can lead to accessing an id in file_ida
after it has been destroyed, resulting in a kernel panic.

Remove ida_destroy(&file_ida) to address these issues.

Fixes: e6fd6d7e5f ("dmaengine: idxd: add a device to represent the file opened")
Signed-off-by: Lijun Pan <lijun.pan@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20240130013954.2024231-1-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-06-12 11:12:25 +02:00
..
bestcomm dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
dw dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
dw-axi-dmac dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
dw-edma dmaengine: dw-edma: eDMA: Add sync read before starting the DMA transfer in remote setup 2024-03-06 14:48:43 +00:00
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: Fix the size of dma pools 2024-02-16 19:10:42 +01:00
hsu dmaengine: hsu: Include headers we are direct user of 2022-09-04 22:49:35 +05:30
idxd dmaengine: idxd: Avoid unnecessary destruction of file_ida 2024-06-12 11:12:25 +02:00
ioat dmaengine: ioatdma: use pci_dev_id() to simplify the code 2023-08-21 18:39:25 +05:30
lgm dmaengine: lgm: Use builtin_platform_driver macro to simplify the code 2023-08-21 11:13:09 +05:30
mediatek dmaengine: mediatek: Fix deadlock caused by synchronize_irq() 2023-10-04 19:26:36 +05:30
ppc4xx dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
ptdma dmaengine: ptdma: use consistent DMA masks 2024-03-06 14:48:40 +00:00
qcom dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
sf-pdma dmaengine: sf-pdma: pdma_desc memory leak fix 2023-02-16 18:45:48 +05:30
sh dmaengine: shdma: increase size of 'dev_id' 2024-03-01 13:34:48 +01:00
ti dmaengine: ti: edma: Add some null pointer checks to the edma_probe 2024-03-01 13:34:50 +01:00
xilinx dma: xilinx_dpdma: Fix locking 2024-05-02 16:32:48 +02:00
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: Keep upper bits of REG_BUS_WIDTH 2024-03-01 13:34:47 +01:00
at_hdmac.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
at_xdmac.c dmaengine: at_xdmac: fix potential Oops in at_xdmac_prep_interleaved() 2023-05-19 16:54:04 +05:30
bcm-sba-raid.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
bcm2835-dma.c dmaengine: drivers: Use devm_platform_ioremap_resource() 2023-01-18 22:16:47 +05:30
dma-axi-dmac.c dmaengine: axi-dmac: Don't set chancnt 2023-05-24 12:24:32 +05:30
dma-jz4780.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
dmaengine.c dmaengine: fix NULL pointer in channel unregistration function 2024-01-31 16:18:47 -08:00
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: ep93xx: Use struct_size() 2023-08-02 00:02:51 +05:30
fsl-edma-common.c dmaengine: fsl-edma: correct calculation of 'nbytes' in multi-fifo scenario 2024-03-06 14:48:41 +00:00
fsl-edma-common.h dmaengine: fsl-edma: correct max_segment_size setting 2024-03-15 10:48:13 -04:00
fsl-edma-main.c dmaengine: fsl-edma: correct max_segment_size setting 2024-03-15 10:48:13 -04:00
fsl-qdma.c dmaengine: fsl-qdma: init irq after reg initialization 2024-03-06 14:48:41 +00:00
fsl_raid.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
fsl_raid.h dmaengine: Driver support for FSL RaidEngine device. 2015-04-02 16:10:27 +05:30
fsldma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +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: Add check for dma_set_max_seg_size 2024-06-12 11:12:15 +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 dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
imx-dma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
imx-sdma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
k3dma.c dmaengine: k3dma: use the correct HiSilicon copyright 2021-04-12 17:14:53 +05:30
Kconfig dmaengine: tegra210-adma: Update dependency to ARCH_TEGRA 2024-03-26 18:19:43 -04:00
lpc18xx-dmamux.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
Makefile dmaengine: fsl-edma: clean up EXPORT_SYMBOL_GPL in fsl-edma-common.c 2023-08-22 20:11:02 +05:30
mcf-edma-main.c dmaengine updates for v6.6 2023-09-03 10:49:42 -07:00
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: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mv_xor_v2.c dmaengine updates for v6.4 2023-05-03 11:11:56 -07:00
mxs-dma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
nbpfaxi.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +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 register access functions 2024-05-02 16:32:47 +02:00
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: Revert "dmaengine: pl330: issue_pending waits until WFP state" 2024-05-17 12:01:55 +02:00
plx_dma.c dmaengine: plx_dma: Don't set chancnt 2023-05-24 12:24:32 +05:30
pxa_dma.c dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc() 2023-11-20 11:59:26 +01:00
sa11x0-dma.c dmaengine: sa11x0: Mark PM functions as __maybe_unused 2021-10-26 10:55:07 +05:30
sprd-dma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
st_fdma.c dmaengine: st_fdma: fix MODULE_ALIAS 2021-12-13 13:18:48 +05:30
st_fdma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ste_dma40.c dmaengine: ste_dma40: Fix PM disable depth imbalance in d40_probe 2023-10-09 10:56:51 +05:30
ste_dma40.h dmaengine: ste_dma40: Remove platform data 2023-05-16 23:00:19 +05:30
ste_dma40_ll.c dmaengine: ste_dma40: Remove platform data 2023-05-16 23:00:19 +05:30
ste_dma40_ll.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
stm32-dma.c dmaengine: stm32-dma: avoid bitfield overflow assertion 2023-12-20 17:02:02 +01:00
stm32-dmamux.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
stm32-mdma.c dmaengine: stm32-mdma: correct desc prep when channel running 2023-11-28 17:20:05 +00:00
sun4i-dma.c dmaengine: drivers: Use devm_platform_ioremap_resource() 2023-01-18 22:16:47 +05:30
sun6i-dma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
tegra20-apb-dma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30
tegra186-gpc-dma.c dmaengine: tegra186: Fix residual calculation 2024-05-02 16:32:47 +02:00
tegra210-adma.c dmaengine: Explicitly include correct DT includes 2023-08-01 23:51:27 +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 dmaengine: dw: don't perform DMA when dmaengine_submit is called 2014-07-15 22:14:30 +05:30
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 2022-01-03 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: Explicitly include correct DT includes 2023-08-01 23:51:27 +05:30