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authorAnand Jain <anand.jain@oracle.com>2019-08-27 15:40:45 +0800
committerDavid Sterba <dsterba@suse.com>2019-09-09 14:59:14 +0200
commitd2979aa25fc8de6498d906ae6b46b028457d6400 (patch)
tree8eec1aae38c552cc0d6f268e550baf4a42fd3252 /fs/btrfs
parenta06dee4d7eb67c35e7b7da0b84216424d60a87d3 (diff)
btrfs: use proper error values on allocation failure in clone_fs_devices
Fix the fake ENOMEM return error code to the actual error in clone_fs_devices(). Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/volumes.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index c7a08fe26672..8bfc41f1b3b6 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1115,6 +1115,7 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
struct btrfs_fs_devices *fs_devices;
struct btrfs_device *device;
struct btrfs_device *orig_dev;
+ int ret = 0;
fs_devices = alloc_fs_devices(orig->fsid, NULL);
if (IS_ERR(fs_devices))
@@ -1128,8 +1129,10 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
device = btrfs_alloc_device(NULL, &orig_dev->devid,
orig_dev->uuid);
- if (IS_ERR(device))
+ if (IS_ERR(device)) {
+ ret = PTR_ERR(device);
goto error;
+ }
/*
* This is ok to do without rcu read locked because we hold the
@@ -1140,6 +1143,7 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
GFP_KERNEL);
if (!name) {
btrfs_free_device(device);
+ ret = -ENOMEM;
goto error;
}
rcu_assign_pointer(device->name, name);
@@ -1154,7 +1158,7 @@ static struct btrfs_fs_devices *clone_fs_devices(struct btrfs_fs_devices *orig)
error:
mutex_unlock(&orig->device_list_mutex);
free_fs_devices(fs_devices);
- return ERR_PTR(-ENOMEM);
+ return ERR_PTR(ret);
}
/*