[PATCH 1/2] md/raid0: Free r0conf memory when register integrity failed

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

Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
---
 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




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