btrfs: remove tmp variable for list traversal in btrfs_init_dev_replace_tgtdev

In the function btrfs_init_dev_replace_tgtdev(), the local variable
devices is used only once, we can remove it.

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>

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index db4d4a5..500e45f 100644 (file)
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -224,7 +224,6 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
 {
        struct btrfs_device *device;
        struct block_device *bdev;
-       struct list_head *devices;
        struct rcu_string *name;
        u64 devid = BTRFS_DEV_REPLACE_DEVID;
        int ret = 0;
@@ -244,8 +243,7 @@ static int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
 
        sync_blockdev(bdev);
 
-       devices = &fs_info->fs_devices->devices;
-       list_for_each_entry(device, devices, dev_list) {
+       list_for_each_entry(device, &fs_info->fs_devices->devices, dev_list) {
                if (device->bdev == bdev) {
                        btrfs_err(fs_info,
                                  "target device is in the filesystem!");