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perf: Fix IS_ERR() vs NULL check in inherit_event() 

The find_get_pmu_context() returns an ERR_PTR() on failure, we should use
IS_ERR() to check the return value.

Fixes: bd27568117 ("perf: Rewrite core context handling")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20221114091833.1492575-1-cuigaosheng1@huawei.com
This commit is contained in:
Gaosheng Cui 2022-11-14 17:18:33 +08:00 committed by Peter Zijlstra
parent 3ce1cb7eee
commit c55bfbb3eb
1 changed files with 1 additions and 1 deletions
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2
kernel/events/core.c
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@ -13171,7 +13171,7 @@ inherit_event(struct perf_event *parent_event,
return child_event;
pmu_ctx = find_get_pmu_context(child_event->pmu, child_ctx, child_event);
if (!pmu_ctx) {
if (IS_ERR(pmu_ctx)) {
free_event(child_event);
return NULL;
}