It's very unlikely, but in theory cache creation can fail during
initcall, so don't forget to return errors back if something goes wrong.
Fixes: 2b188cc1bb857 ("Add io_uring IO interface")
Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
io_uring/io_uring.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 263e504be4a8b..9335144495299 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -3916,6 +3916,9 @@ static int __init io_uring_init(void)
req_cachep = kmem_cache_create("io_kiocb", sizeof(struct io_kiocb), &kmem_args,
SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT |
SLAB_TYPESAFE_BY_RCU);
+ if (!req_cachep)
+ return -ENOMEM;
+
io_buf_cachep = KMEM_CACHE(io_buffer,
SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
--
2.47.1
