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authorKishon Vijay Abraham I <kishon@ti.com>2021-10-31 08:54:10 +0530
committerVinod Koul <vkoul@kernel.org>2021-11-09 11:24:06 +0530
commit5c6c6d60e4b489308ae4da8424c869f7cc53cd12 (patch)
treefd876c0a3e8e498edeb3f283c82282825623f9a9 /net/atm
parent2498363310e9b5e5de0e104709adc35c9f3ff7d9 (diff)
dmaengine: ti: k3-udma: Set bchan to NULL if a channel request fail
bcdma_get_*() checks if bchan is already allocated by checking if it has a NON NULL value. For the error cases, bchan will have error value and bcdma_get_*() considers this as already allocated (PASS) since the error values are NON NULL. This results in NULL pointer dereference error while de-referencing bchan. Reset the value of bchan to NULL if a channel request fails. CC: stable@vger.kernel.org Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Link: https://lore.kernel.org/r/20211031032411.27235-2-kishon@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
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