Re: [PATCH] hwmon: hp-wmi-sensors: Fix info_map[] allocation type

[sashiko-bot@kernel.org]

> From: Kees Cook <kees+treewide@kernel.org>
> 
> In preparation for making the devm_kmalloc family of allocators type
> aware, we need to make sure that the returned type from the allocation
> matches the type of the variable being assigned. (Before, the allocator
> would always return "void *", which can be implicitly cast to any
> pointer type.)
> 
> The assigned type of "info_map[type]" is "struct hp_wmi_info **", but
> the converted allocation type would be "struct hp_wmi_info ***", as the
> size was taken from "*info_map", which is one level of indirection too
> many. Luckily both element types are pointers of the same size. Take the
> size from the element type of the assignment target.
> 
> Build tested ARCH=x86_64 allmodconfig with GCC 16.2.0:
> drivers/hwmon/hp-wmi-sensors.o
> 
> Assisted-by: LLM coccinelle
> Signed-off-by: Kees Cook <kees+treewide@kernel.org>

Sashiko has reviewed this patch and found no issues. It looks great!

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