From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 5 Oct 2016 18:32:30 +0200
Resource release functions were called in up to three cases
by the setup_conf() function during error handling even if
the passed data structure members contained a null pointer.
Adjust jump targets according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/md/raid10.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 7e512d4..9b8d11f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3508,13 +3508,13 @@ static struct r10conf *setup_conf(struct mddev *mddev)
GFP_KERNEL);
if (!conf->mirrors) {
err = -ENOMEM;
- goto out;
+ goto free_conf;
}
conf->tmppage = alloc_page(GFP_KERNEL);
if (!conf->tmppage) {
err = -ENOMEM;
- goto out;
+ goto kfree_mirrors;
}
conf->geo = geo;
@@ -3523,7 +3523,7 @@ static struct r10conf *setup_conf(struct mddev *mddev)
r10bio_pool_free, conf);
if (!conf->r10bio_pool) {
err = -ENOMEM;
- goto out;
+ goto put_page;
}
calc_sectors(conf, mddev->dev_sectors);
@@ -3533,7 +3533,7 @@ static struct r10conf *setup_conf(struct mddev *mddev)
} else {
if (setup_geo(&conf->prev, mddev, geo_old) != conf->copies) {
err = -EINVAL;
- goto out;
+ goto destroy_pool;
}
conf->reshape_progress = mddev->reshape_position;
if (conf->prev.far_offset)
@@ -3554,16 +3554,18 @@ static struct r10conf *setup_conf(struct mddev *mddev)
conf->thread = md_register_thread(raid10d, mddev, "raid10");
if (!conf->thread) {
err = -ENOMEM;
- goto out;
+ goto destroy_pool;
}
conf->mddev = mddev;
return conf;
-
- out:
+destroy_pool:
mempool_destroy(conf->r10bio_pool);
+put_page:
safe_put_page(conf->tmppage);
+kfree_mirrors:
kfree(conf->mirrors);
+free_conf:
kfree(conf);
return ERR_PTR(err);
}
--
2.10.1
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