Merge branch 'perf/urgent' into perf/core

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / events / core.c

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 98c0845fcd208fe676159e24085fa1c82fadcf51..8097df340eedb25f85fe574f172b56f1ad4b29e6 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4764,7 +4764,8 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
        } else {
                if (arch_vma_name(mmap_event->vma)) {
                        name = strncpy(tmp, arch_vma_name(mmap_event->vma),
-                                      sizeof(tmp));
+                                      sizeof(tmp) - 1);
+                       tmp[sizeof(tmp) - 1] = '\0';
                        goto got_name;
                }
 
@@ -5360,7 +5361,7 @@ static void sw_perf_event_destroy(struct perf_event *event)
 
 static int perf_swevent_init(struct perf_event *event)
 {
-       int event_id = event->attr.config;
+       u64 event_id = event->attr.config;
 
        if (event->attr.type != PERF_TYPE_SOFTWARE)
                return -ENOENT;
@@ -6016,6 +6017,7 @@ skip_type:
        if (pmu->pmu_cpu_context)
                goto got_cpu_context;
 
+       ret = -ENOMEM;
        pmu->pmu_cpu_context = alloc_percpu(struct perf_cpu_context);
        if (!pmu->pmu_cpu_context)
                goto free_dev;