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-rw-r--r--kernel/drivers/infiniband/core/uverbs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/drivers/infiniband/core/uverbs.h b/kernel/drivers/infiniband/core/uverbs.h
index 94bbd8c15..a2d19d136 100644
--- a/kernel/drivers/infiniband/core/uverbs.h
+++ b/kernel/drivers/infiniband/core/uverbs.h
@@ -116,6 +116,7 @@ struct ib_uverbs_event_file {
struct ib_uverbs_file {
struct kref ref;
struct mutex mutex;
+ struct mutex cleanup_mutex; /* protect cleanup */
struct ib_uverbs_device *device;
struct ib_ucontext *ucontext;
struct ib_event_handler event_handler;