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(parent: 5b2aa9f) | patch
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()
authorYu Kuai <yukuai3@huawei.com>
Mon, 17 Aug 2020 11:57:26 +0000 (19:57 +0800)
committerVinod Koul <vkoul@kernel.org>
Wed, 19 Aug 2020 04:28:37 +0000 (09:58 +0530)
commit0cef8e2c5a07d482ec907249dbd6687e8697677f
treed05dda5202af6e185825ee193695bb006af46033tree | snapshot
parent5b2aa9f918f6837ae943557f8cec02c34fcf80e7commit | diff
dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate()

The reurn value of of_find_device_by_node() is not checked, thus null
pointer dereference will be triggered if of_find_device_by_node()
failed.

Fixes: bbe89c8e3d59 ("at_hdmac: move to generic DMA binding")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20200817115728.1706719-2-yukuai3@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/dma/at_hdmac.c diff | blob | history
Domain: System / Kernel;