From fc6572e48cd5cba201fce081c24742aa6eb629b2 Mon Sep 17 00:00:00 2001 From: Pierre Gondois Date: Tue, 21 Oct 2025 01:36:21 +0800 Subject: [PATCH] cacheinfo: Initialize variables in fetch_cache_info() [ Upstream commit ecaef469920fd6d2c7687f19081946f47684a423 ] Set potentially uninitialized variables to 0. This is particularly relevant when CONFIG_ACPI_PPTT is not set. Reported-by: kernel test robot Link: https://lore.kernel.org/all/202301052307.JYt1GWaJ-lkp@intel.com/ Reported-by: Dan Carpenter Link: https://lore.kernel.org/all/Y86iruJPuwNN7rZw@kili/ Fixes: 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU") Signed-off-by: Pierre Gondois Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20230124154053.355376-2-pierre.gondois@arm.com Signed-off-by: Wen Yang Signed-off-by: Greg Kroah-Hartman --- 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 cd943d06d074..26ae36f2ff58 100644 --- a/drivers/base/cacheinfo.c +++ b/drivers/base/cacheinfo.c @@ -440,7 +440,7 @@ 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) {