>If the driver fails to obtain a DMA channel, it will initiate cleanup
>and try to release the DMA channel that couldn't be retrieved. This will
>cause a crash because the cleanup will try to dereference an ERR_PTR()-
>encoded error code.
>
>However, there's nothing to clean up at this point yet, so we can avoid
>this by simply resetting the DMA channel to NULL instead of storing the
>error code.
>
>Fixes: fcc8a89a1c83 ("i2c: tegra: Share same DMA channel for RX and TX")
>Signed-off-by: Thierry Reding mailto:treding@xxxxxxxxxx
This fixed the crash issue seen when there is no dmas property in the device tree.
Tested-by: Akhil R <akhilrajeev@xxxxxxxxxx>
