diff options
-rw-r--r-- | kernel/perf_event.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 35df94e344f2..34a1b9d7633e 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c | |||
@@ -4780,14 +4780,17 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu, | |||
4780 | */ | 4780 | */ |
4781 | 4781 | ||
4782 | ctx = find_get_context(pid, cpu); | 4782 | ctx = find_get_context(pid, cpu); |
4783 | if (IS_ERR(ctx)) | 4783 | if (IS_ERR(ctx)) { |
4784 | return NULL; | 4784 | err = PTR_ERR(ctx); |
4785 | goto err_exit; | ||
4786 | } | ||
4785 | 4787 | ||
4786 | event = perf_event_alloc(attr, cpu, ctx, NULL, | 4788 | event = perf_event_alloc(attr, cpu, ctx, NULL, |
4787 | NULL, callback, GFP_KERNEL); | 4789 | NULL, callback, GFP_KERNEL); |
4788 | err = PTR_ERR(event); | 4790 | if (IS_ERR(event)) { |
4789 | if (IS_ERR(event)) | 4791 | err = PTR_ERR(event); |
4790 | goto err_put_context; | 4792 | goto err_put_context; |
4793 | } | ||
4791 | 4794 | ||
4792 | event->filp = NULL; | 4795 | event->filp = NULL; |
4793 | WARN_ON_ONCE(ctx->parent_ctx); | 4796 | WARN_ON_ONCE(ctx->parent_ctx); |
@@ -4804,11 +4807,10 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu, | |||
4804 | 4807 | ||
4805 | return event; | 4808 | return event; |
4806 | 4809 | ||
4807 | err_put_context: | 4810 | err_put_context: |
4808 | if (err < 0) | 4811 | put_ctx(ctx); |
4809 | put_ctx(ctx); | 4812 | err_exit: |
4810 | 4813 | return ERR_PTR(err); | |
4811 | return NULL; | ||
4812 | } | 4814 | } |
4813 | EXPORT_SYMBOL_GPL(perf_event_create_kernel_counter); | 4815 | EXPORT_SYMBOL_GPL(perf_event_create_kernel_counter); |
4814 | 4816 | ||