Re: [PATCH] media: verisilicon: Fix kernel panic due to __initconst misuse

[Francesco Dolcini]

On Thu, Mar 05, 2026 at 04:03:52PM +0800, ming.qian@xxxxxxxxxxx wrote:
> From: Ming Qian <ming.qian@xxxxxxxxxxx>
> 
> Fix a kernel panic when probing the driver as a module:
> 
>   Unable to handle kernel paging request at virtual address
>   ffffd9c18eb05000
>   of_find_matching_node_and_match+0x5c/0x1a0
>   hantro_probe+0x2f4/0x7d0 [hantro_vpu]
> 
> The imx8mq_vpu_shared_resources array is referenced by variant
> structures through their shared_devices field. When built as a
> module, __initconst causes this data to be freed after module
> init, but it's later accessed during probe, causing a page fault.
> 
> Use __initconst_or_module to keep the data available when built
> as a module while still allowing it to be freed when built-in.
> 
> Fixes: e0203ddf9af7 ("media: verisilicon: Avoid G2 bus error while decoding H.264 and HEVC")
> Signed-off-by: Ming Qian <ming.qian@xxxxxxxxxxx>

In addition to what Marco asked ...

Reported-by: Franz Schnyder <fra.schnyder@xxxxxxxxx>
Closes: https://lore.kernel.org/all/n3qmcb62tepxltoskpf7ws6yiirc2so62ia23b42rj3wlmpl67@rvkbuirx7kkp/



Francesco