On Tue, 2024-12-10 at 16:18 +0100, Stanislaw Gruszka wrote:
I've reproduced the issue. It's caused by 6.12.y commit:
commit 6ac269abab9ca5ae910deb2d3ca54351c3467e99 Author: Bingbu Cao bingbu.cao@intel.com Date: Wed Oct 16 15:53:01 2024 +0800
media: ipu6: not override the dma_ops of device in driver
Terrific - I missed your comment as I was heads down doing git bisect which lands on same commit as you - so confirmed.
The problem will disappear after applying: https://lore.kernel.org/stable/20241209175416.59433-1- stanislaw.gruszka@linux.intel.com/ since the allocation will not longer fail.
But we also need to handle fail case correctly by adding cpu_latency_qos_remove_request() on error path. This requires mainline fix, I'll post it.
Thank you !
Gene