btrfs: Fix misleading indentation reported by smatch

This patch avoids that building the BTRFS source code with smatch
triggers complaints about inconsistent indenting.

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent-tree.c

@@ -6313,7 +6313,7 @@ static int update_block_group(struct btrfs_trans_handle *trans,
 		if (list_empty(&cache->dirty_list)) {
 			list_add_tail(&cache->dirty_list,
 				      &trans->transaction->dirty_bgs);
-				trans->transaction->num_dirty_bgs++;
+			trans->transaction->num_dirty_bgs++;
 			btrfs_get_block_group(cache);
 		}
 		spin_unlock(&trans->transaction->dirty_bgs_lock);
@@ -7568,7 +7568,7 @@ search:
 		 * for the proper type.
 		 */
 		if (!block_group_bits(block_group, flags)) {
-		    u64 extra = BTRFS_BLOCK_GROUP_DUP |
+			u64 extra = BTRFS_BLOCK_GROUP_DUP |
 				BTRFS_BLOCK_GROUP_RAID1 |
 				BTRFS_BLOCK_GROUP_RAID5 |
 				BTRFS_BLOCK_GROUP_RAID6 |

fs/btrfs/ioctl.c

@@ -2507,8 +2507,8 @@ out:
 static noinline int btrfs_ioctl_ino_lookup(struct file *file,
 					   void __user *argp)
 {
-	 struct btrfs_ioctl_ino_lookup_args *args;
-	 struct inode *inode;
+	struct btrfs_ioctl_ino_lookup_args *args;
+	struct inode *inode;
 	int ret = 0;
 
 	args = memdup_user(argp, sizeof(*args));

fs/btrfs/reada.c

@@ -355,7 +355,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_fs_info *fs_info,
 		dev = bbio->stripes[nzones].dev;
 
 		/* cannot read ahead on missing device. */
-		 if (!dev->bdev)
+		if (!dev->bdev)
 			continue;
 
 		zone = reada_find_zone(dev, logical, bbio);