io_uring: fix poll/netmsg alloc caches

[linux-block.git] / io_uring / kbuf.c

diff --git a/io_uring/kbuf.c b/io_uring/kbuf.c
index 4a6401080c1f88a74d76c4ce88bd15fee40f2528..3002dc827195916b160fce8376de009feb86f3c5 100644 (file)
--- a/io_uring/kbuf.c
+++ b/io_uring/kbuf.c
@@ -505,7 +505,7 @@ int io_register_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg)
        }
 
        pages = io_pin_pages(reg.ring_addr,
-                            struct_size(br, bufs, reg.ring_entries),
+                            flex_array_size(br, bufs, reg.ring_entries),
                             &nr_pages);
        if (IS_ERR(pages)) {
                kfree(free_bl);