There are users not checking for register_shrinker() failure.
Continuing with ignoring failure can lead to later oops at
unregister_shrinker().
Signed-off-by: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
---
include/linux/shrinker.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 388ff29..a389491 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -75,6 +75,6 @@ struct shrinker {
#define SHRINKER_NUMA_AWARE (1 << 0)
#define SHRINKER_MEMCG_AWARE (1 << 1)
-extern int register_shrinker(struct shrinker *);
+extern __must_check int register_shrinker(struct shrinker *);
extern void unregister_shrinker(struct shrinker *);
#endif
--
1.8.3.1
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