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authorSujoy Ray <sujoy.ray@intel.com>2022-05-04 21:01:19 +0300
committerSujoy Ray <sujoy.ray@intel.com>2022-05-12 17:46:40 +0300
commitefe6d9649b1d6b85b50cef64745df2e6749a8a45 (patch)
treee9aca55fa1fa29fea638ee52832fa9691fdd6f02 /drivers/acpi/cppc_acpi.c
parentab95859fee776e58934d2b0cc1f4e93810e66508 (diff)
parent49caedb668e476c100d727f2174724e0610a2b92 (diff)
downloadlinux-efe6d9649b1d6b85b50cef64745df2e6749a8a45.tar.xz
Merge commit '49caedb668e476c100d727f2174724e0610a2b92' of https://github.com/openbmc/linux into openbmc/dev-5.15-intel-bump_v5.15.36
Signed-off-by: Sujoy Ray <sujoy.ray@intel.com>
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
-rw-r--r--drivers/acpi/cppc_acpi.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 6fe28a2d387b..71b87c16f92d 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -703,6 +703,11 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
cpc_obj = &out_obj->package.elements[0];
if (cpc_obj->type == ACPI_TYPE_INTEGER) {
num_ent = cpc_obj->integer.value;
+ if (num_ent <= 1) {
+ pr_debug("Unexpected _CPC NumEntries value (%d) for CPU:%d\n",
+ num_ent, pr->id);
+ goto out_free;
+ }
} else {
pr_debug("Unexpected entry type(%d) for NumEntries\n",
cpc_obj->type);