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authorLinus Torvalds <torvalds@linux-foundation.org>2017-12-20 13:44:21 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-12-20 13:44:21 -0800
commit1362d628cbce244e0b90c60d6d631289d07bbfa1 (patch)
tree0937f6b7de38b6d68f3c5f6ab3b54a337f4ae50f
parentMerge tag 'pm-4.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff)
parentMerge branch 'acpi-cppc' (diff)
downloadlinux-dev-1362d628cbce244e0b90c60d6d631289d07bbfa1.tar.xz
linux-dev-1362d628cbce244e0b90c60d6d631289d07bbfa1.zip
Merge tag 'acpi-4.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki: "These fix a recently introduced issue in the ACPI CPPC driver and an obscure error hanling bug in the APEI code. Specifics: - Fix an error handling issue in the ACPI APEI implementation of the >read callback in struct pstore_info (Takashi Iwai). - Fix a possible out-of-bounds arrar read in the ACPI CPPC driver (Colin Ian King)" * tag 'acpi-4.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: APEI / ERST: Fix missing error handling in erst_reader() ACPI: CPPC: remove initial assignment of pcc_ss_data
-rw-r--r--drivers/acpi/apei/erst.c2
-rw-r--r--drivers/acpi/cppc_acpi.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 6742f6c68034..9bff853e85f3 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -1007,7 +1007,7 @@ skip:
/* The record may be cleared by others, try read next record */
if (len == -ENOENT)
goto skip;
- else if (len < sizeof(*rcd)) {
+ else if (len < 0 || len < sizeof(*rcd)) {
rc = -EIO;
goto out;
}
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 30e84cc600ae..06ea4749ebd9 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -1171,7 +1171,7 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpu);
struct cpc_register_resource *desired_reg;
int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
- struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
+ struct cppc_pcc_data *pcc_ss_data;
int ret = 0;
if (!cpc_desc || pcc_ss_id < 0) {