Re: [PATCH -next v2 1/3] cacheinfo: Initialize variables in fetch_cache_info()

From: Conor Dooley
Date: Tue Jan 24 2023 - 12:19:18 EST


On Tue, Jan 24, 2023 at 04:40:46PM +0100, Pierre Gondois wrote:
> Set potentially uninitialized variables to 0. This is particularly
> relevant when CONFIG_ACPI_PPTT is not set.
>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Link: https://lore.kernel.org/all/202301052307.JYt1GWaJ-lkp@xxxxxxxxx/
> Reported-by: Dan Carpenter <error27@xxxxxxxxx>
> Link: https://lore.kernel.org/all/Y86iruJPuwNN7rZw@kili/
> Fixes: 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU")
> Signed-off-by: Pierre Gondois <pierre.gondois@xxxxxxx>

Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

Thanks for the quick respin Pierre :)

> ---
> drivers/base/cacheinfo.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
> index 418a18acc8f9..f6573c335f4c 100644
> --- a/drivers/base/cacheinfo.c
> +++ b/drivers/base/cacheinfo.c
> @@ -424,7 +424,7 @@ int allocate_cache_info(int cpu)
> int fetch_cache_info(unsigned int cpu)
> {
> struct cpu_cacheinfo *this_cpu_ci;
> - unsigned int levels, split_levels;
> + unsigned int levels = 0, split_levels = 0;
> int ret;
>
> if (acpi_disabled) {
> --
> 2.25.1
>

Attachment: signature.asc
Description: PGP signature