[PATCH] io_uring/rsrc: use io_cache_free() to free node allocated by io_rsrc_node_alloc()

[Jackie Liu <liu.yun@linux.dev>]

From: Jackie Liu <liuyun01@kylinos.cn>

Replace kfree(node) with io_cache_free() in io_buffer_register_bvec()
to match all other error paths that free nodes allocated via
io_rsrc_node_alloc(). The node is allocated through io_cache_alloc()
internally, so it should be returned to the cache via io_cache_free()
for proper object reuse.

Fixes: 27cb27b6d5ea ("io_uring: add support for kernel registered bvecs")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
---
 io_uring/rsrc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index 4fa59bf89bba..c4a7b29a327c 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -961,7 +961,7 @@ int io_buffer_register_bvec(struct io_uring_cmd *cmd, struct request *rq,
 	 */
 	imu = io_alloc_imu(ctx, blk_rq_nr_phys_segments(rq));
 	if (!imu) {
-		kfree(node);
+		io_cache_free(&ctx->node_cache, node);
 		ret = -ENOMEM;
 		goto unlock;
 	}
-- 
2.51.1