From: Pierre Gondois <pierre.gondois@arm.com>
Date: Tue, 24 Jan 2023 15:40:46 +0000 (+0100)
Subject: cacheinfo: Initialize variables in fetch_cache_info()
X-Git-Tag: v6.3-rc1~106^2~64
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ecaef469920fd6d2c7687f19081946f47684a423;p=thirdparty%2Fkernel%2Flinux.git

cacheinfo: Initialize variables in fetch_cache_info()

Set potentially uninitialized variables to 0. This is particularly
relevant when CONFIG_ACPI_PPTT is not set.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/all/202301052307.JYt1GWaJ-lkp@intel.com/
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/all/Y86iruJPuwNN7rZw@kili/
Fixes: 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU")
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230124154053.355376-2-pierre.gondois@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index 418a18acc8f9e..f6573c335f4c4 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) {