Re: [PATCH] Btrfs: cleanup: remove unnecessary check before btrfs_free_path is called

[Qu Wenruo]

Tsutomu Itoh wrote on 2015/08/19 14:55 +0900:

We need not check path before btrfs_free_path() is called because
path is checked in btrfs_free_path().

Signed-off-by: Tsutomu Itoh <t-i...@jp.fujitsu.com>

Reviewed-by: Qu Wenruo <quwen...@cn.fujitsu.com>

BTW, did you check btrfs-progs for the such cleanup?

Thanks,
Qu

---
  fs/btrfs/dev-replace.c | 3 +--
  fs/btrfs/inode.c       | 3 +--
  fs/btrfs/tree-defrag.c | 3 +--
  3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 564a7de..e54dd59 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -183,8 +183,7 @@ no_valid_dev_replace_entry_found:
        }

  out:
-       if (path)
-               btrfs_free_path(path);
+       btrfs_free_path(path);
        return ret;
  }

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e33dff3..21ba036 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6876,8 +6876,7 @@ out:

        trace_btrfs_get_extent(root, em);

-       if (path)
-               btrfs_free_path(path);
+       btrfs_free_path(path);
        if (trans) {
                ret = btrfs_end_transaction(trans, root);
                if (!err)
diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index a4b9c8b..f31db43 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -115,8 +115,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
                ret = -EAGAIN;
        }
  out:
-       if (path)
-               btrfs_free_path(path);
+       btrfs_free_path(path);
        if (ret == -EAGAIN) {
                if (root->defrag_max.objectid > root->defrag_progress.objectid)
                        goto done;

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