On Mon, Jul 17, 2023 at 08:42:40PM +0530, Akhil R wrote:
> Check for error and NULL before attempting to release DMA channel.
>
> This, otherwise, was causing panic and crash in kernel when the
> dma_chan has an invalid value. The condition occurs during init_dma()
> when the dma_request_chan() function returns an error.
>
> Fixes: fcc8a89a1c83 ("i2c: tegra: Share same DMA channel for RX and TX")
> Signed-off-by: Akhil R <akhilrajeev@xxxxxxxxxx>
> ---
> drivers/i2c/busses/i2c-tegra.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
There's already another patch on the list that should address this:
https://patchwork.ozlabs.org/project/linux-tegra/patch/20230707132619.2998382-1-thierry.reding@xxxxxxxxx/
Can you please test and provide feedback on that one?
Thanks,
Thierry
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