On 7/17/23 12:15, Akhil R wrote:
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@xxxxxxxxxxThis fixed the crash issue seen when there is no dmas property in the device tree. Tested-by: Akhil R <akhilrajeev@xxxxxxxxxx>
The kernel crash issue has been fixed with ACPI based kernel on T241 (Server) platform. Tested-by: Shanker Donthineni <sdonthineni@xxxxxxxxxx>
