Signed-off-by: Alexander Gordeev <[email protected]>
Cc: Kent Overstreet <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: "Nicholas A. Bellinger" <[email protected]>
Acked-by: Kent Overstreet <[email protected]>
---
lib/percpu_ida.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index 472ff08..f474f03 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -293,6 +293,11 @@ int __percpu_ida_init(struct percpu_ida *pool, unsigned
long nr_tags,
{
unsigned i, cpu, order;
+ if (batch_size > max_size)
+ return -ERANGE;
+ if (!batch_size)
+ return -EINVAL;
+
memset(pool, 0, sizeof(*pool));
init_waitqueue_head(&pool->wait);
--
1.7.7.6
--
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