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authorRavi Bangoria <ravi.bangoria@amd.com>2022-11-18 08:15:39 +0300
committerPeter Zijlstra <peterz@infradead.org>2022-12-27 14:44:00 +0300
commite2d371484653ac83b970d3ebcf343383f39f8b6b (patch)
tree41b65d9809c9f301b249cd163e9f7f0e85dfd250 /kernel
parent1b929c02afd37871d5afb9d498426f83432e71c2 (diff)
downloadlinux-e2d371484653ac83b970d3ebcf343383f39f8b6b.tar.xz
perf core: Return error pointer if inherit_event() fails to find pmu_ctx
inherit_event() returns NULL only when it finds orphaned events otherwise it returns either valid child_event pointer or an error pointer. Follow the same when it fails to find pmu_ctx. Fixes: bd2756811766 ("perf: Rewrite core context handling") Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20221118051539.820-1-ravi.bangoria@amd.com
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index eacc3702654d..4bd2434251f0 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -13231,7 +13231,7 @@ inherit_event(struct perf_event *parent_event,
pmu_ctx = find_get_pmu_context(child_event->pmu, child_ctx, child_event);
if (IS_ERR(pmu_ctx)) {
free_event(child_event);
- return NULL;
+ return ERR_CAST(pmu_ctx);
}
child_event->pmu_ctx = pmu_ctx;