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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-10 11:46:59 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-10 11:46:59 -0800
commitc23e744b59efcf546b2b16834c68b85248d6bf3b (patch)
tree959023079b206a4a879c8e2a6ff955c914719850 /drivers
parentbef1d88263ff769f15aa0e1515cdcede84e61d15 (diff)
parent10674d97c4e266e8c50ce794d1c470c26228d52b (diff)
downloadlinux-c23e744b59efcf546b2b16834c68b85248d6bf3b.tar.bz2
Merge tag 'pm-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki: "Prevent the cpufreq-dt driver from probing Tegra20/30 (Dmitry Osipenko) and prevent the Intel RAPL power capping driver from crashing during CPU initialization due to a NULL pointer dereference if the processor model in use is not known to it (Harry Pan)" * tag 'pm-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online() cpufreq: dt-platdev: Blacklist NVIDIA Tegra20 and Tegra30 SoCs
Diffstat (limited to 'drivers')
-rw-r--r--drivers/cpufreq/cpufreq-dt-platdev.c2
-rw-r--r--drivers/powercap/intel_rapl_common.c3
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index f1d170dcf4d3..aba591d57c67 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -121,6 +121,8 @@ static const struct of_device_id blacklist[] __initconst = {
{ .compatible = "mediatek,mt8176", },
{ .compatible = "mediatek,mt8183", },
+ { .compatible = "nvidia,tegra20", },
+ { .compatible = "nvidia,tegra30", },
{ .compatible = "nvidia,tegra124", },
{ .compatible = "nvidia,tegra210", },
diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c
index a67701ed93e8..2e5b6a6834da 100644
--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -1295,6 +1295,9 @@ struct rapl_package *rapl_add_package(int cpu, struct rapl_if_priv *priv)
struct cpuinfo_x86 *c = &cpu_data(cpu);
int ret;
+ if (!rapl_defaults)
+ return ERR_PTR(-ENODEV);
+
rp = kzalloc(sizeof(struct rapl_package), GFP_KERNEL);
if (!rp)
return ERR_PTR(-ENOMEM);