From 98d5561bfbc3c7a53d6abc1812a2bd5344d36fa3 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Mon, 2 Apr 2012 09:48:37 +1000 Subject: [PATCH] md/linear: If md_integrity_register() fails, linear_run() must free the mem. Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/linear.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/md/linear.c b/drivers/md/linear.c index b0fcc7d02adb..fa211d80fc0a 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -198,6 +198,7 @@ out: static int linear_run (struct mddev *mddev) { struct linear_conf *conf; + int ret; if (md_check_no_bitmap(mddev)) return -EINVAL; @@ -211,7 +212,13 @@ static int linear_run (struct mddev *mddev) blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec); mddev->queue->backing_dev_info.congested_fn = linear_congested; mddev->queue->backing_dev_info.congested_data = mddev; - return md_integrity_register(mddev); + + ret = md_integrity_register(mddev); + if (ret) { + kfree(conf); + mddev->private = NULL; + } + return ret; } static int linear_add(struct mddev *mddev, struct md_rdev *rdev) -- 2.30.2