[PATCH] perf: Extend attr check to allow also dynamically generatedtypes

[Robert Richter]

When attaching events to a pmu with generated type, the initialization
fails. Extending the check to allow such types.

Signed-off-by: Robert Richter <robert.richter@xxxxxxx>
---
 kernel/events/core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index cca3588..5900729 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5958,7 +5958,7 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
 	 * If the type exists, the corresponding creation will verify
 	 * the attr->config.
 	 */
-	if (attr->type >= PERF_TYPE_MAX)
+	if (attr->type >= PERF_TYPE_MAX && !idr_find(&pmu_idr, attr->type))
 		return -EINVAL;
 
 	if (attr->__reserved_1)
-- 
1.7.5.3




-- 
Advanced Micro Devices, Inc.
Operating System Research Center

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