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From: Xiao Ni <xni@redhat.com>
To: song@kernel.org
Cc: guoqing.jiang@linux.dev, ncroxon@redhat.com, linux-raid@vger.kernel.org
Subject: [PATCH 1/2] md/raid0: Free r0conf memory when register integrity failed
Date: Thu,  9 Dec 2021 13:55:23 +0800	[thread overview]
Message-ID: <1639029324-4026-2-git-send-email-xni@redhat.com> (raw)
In-Reply-To: <1639029324-4026-1-git-send-email-xni@redhat.com>

It doesn't free memory when register integrity failed. And move
free conf codes into a single function.

Signed-off-by: Xiao Ni <xni@redhat.com>
---
 drivers/md/raid0.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 62c8b6adac70..3fa47df1c60e 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -356,6 +356,7 @@ static sector_t raid0_size(struct mddev *mddev, sector_t sectors, int raid_disks
 	return array_sectors;
 }
 
+static void free_conf(struct r0conf *conf);
 static void raid0_free(struct mddev *mddev, void *priv);
 
 static int raid0_run(struct mddev *mddev)
@@ -413,19 +414,30 @@ static int raid0_run(struct mddev *mddev)
 	dump_zones(mddev);
 
 	ret = md_integrity_register(mddev);
+	if (ret)
+		goto free;
 
 	return ret;
+
+free:
+	free_conf(conf);
+	return ret;
 }
 
-static void raid0_free(struct mddev *mddev, void *priv)
+static void free_conf(struct r0conf *conf)
 {
-	struct r0conf *conf = priv;
-
 	kfree(conf->strip_zone);
 	kfree(conf->devlist);
 	kfree(conf);
 }
 
+static void raid0_free(struct mddev *mddev, void *priv)
+{
+	struct r0conf *conf = priv;
+
+	free_conf(conf);
+}
+
 static void raid0_handle_discard(struct mddev *mddev, struct bio *bio)
 {
 	struct r0conf *conf = mddev->private;
-- 
2.31.1


  reply	other threads:[~2021-12-09  5:55 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-09  5:55 [PATCH 0/2] md: it panic after reshape from raid1 to raid5 Xiao Ni
2021-12-09  5:55 ` Xiao Ni [this message]
2021-12-09 18:02   ` [PATCH 1/2] md/raid0: Free r0conf memory when register integrity failed Song Liu
2021-12-10  1:18     ` Xiao Ni
2021-12-10  2:07       ` Guoqing Jiang
2021-12-10  2:17         ` Xiao Ni
2021-12-10  2:27       ` Song Liu
2021-12-10  1:22     ` Guoqing Jiang
2021-12-10  1:34       ` Xiao Ni
2021-12-10  1:43         ` Guoqing Jiang
2021-12-10  2:29         ` Song Liu
2021-12-10  1:51       ` Xiao Ni
2021-12-09  5:55 ` [PATCH 2/2] md: Move alloc/free acct bioset in to personality Xiao Ni
2021-12-10  1:30   ` Guoqing Jiang

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