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android_kernel_xiaomi_sm8450/drivers/dma-buf
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Dawei Li af9de5cdcb dma-buf: fix racing conflict of dma_heap_add() 
[ Upstream commit 432e25902b9651622578c6248e549297d03caf66 ]

Racing conflict could be:
task A                 task B
list_for_each_entry
strcmp(h->name))
                       list_for_each_entry
                       strcmp(h->name)
kzalloc                kzalloc
......                 .....
device_create          device_create
list_add
                       list_add

The root cause is that task B has no idea about the fact someone
else(A) has inserted heap with same name when it calls list_add,
so a potential collision occurs.

Fixes: c02a81fba7 ("dma-buf: Add dma-buf heaps framework")
Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Acked-by: Andrew Davis <afd@ti.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/TYCP286MB2323873BBDF88020781FB986CA3B9@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-02 17:40:01 +01:00
..
heaps
Merge tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping
2020-10-15 14:43:29 -07:00
dma-buf.c
dma-buf: WARN on dmabuf release with pending attachments
2021-11-18 14:03:52 +01:00
dma-fence-array.c
dma_fence_array: Fix PENDING_ERROR leak in dma_fence_array_signaled()
2022-01-27 10:53:43 +01:00
dma-fence-chain.c
dma-buf: fence-chain: Document missing dma_fence_chain_init() parameter in kerneldoc
2020-09-03 17:47:02 +05:30
dma-fence.c
dma-buf: fix kernel-doc warning in dma-fence.c
2020-09-02 14:39:15 +02:00
dma-heap.c
dma-buf: fix racing conflict of dma_heap_add()
2022-12-02 17:40:01 +01:00
dma-resv.c
dma-buf/dma-resv: Respect num_fences when initializing the shared fence list.
2020-12-30 11:54:26 +01:00
Kconfig
dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER
2021-09-26 14:08:59 +02:00
Makefile
dma-buf: Exercise dma-fence-chain under selftests
2020-04-09 19:58:55 +01:00
selftest.c
dma-buf: Introduce selftesting framework
2019-08-19 18:01:34 +01:00
selftest.h
dma-buf: Introduce selftesting framework
2019-08-19 18:01:34 +01:00
selftests.h
Merge drm/drm-next into drm-intel-next-queued
2020-06-25 18:05:03 +03:00
seqno-fence.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
st-dma-fence-chain.c
dma-buf: fix dma-fence-chain out of order test
2020-07-02 15:21:40 +02:00
st-dma-fence.c
dmabuf: Mark up onstack timer for selftests
2019-08-20 13:49:15 +01:00
sw_sync.c
compat_ioctl: move more drivers to compat_ptr_ioctl
2019-10-23 17:23:44 +02:00
sync_debug.c
Merge v5.2-rc5 into drm-next
2019-06-19 12:07:29 +02:00
sync_debug.h
dma-buf: Remove unused sync_dump()
2019-04-23 09:30:07 +01:00
sync_file.c
dma-buf/sync_file: Don't leak fences on merge failure
2021-07-25 14:36:20 +02:00
sync_trace.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
udmabuf.c
udmabuf: Set ubuf->sg = NULL if the creation of sg table fails
2022-10-26 13:25:48 +02:00