diff options
| author |   Jiapeng Chong <jiapeng.chong@linux.alibaba.com> | 2021-04-29 18:18:12 +0800 |
|---|---|---|
| committer |   David Howells <dhowells@redhat.com> | 2021-07-21 15:11:22 +0100 |
| commit | b428081282f85db8a0d4ae6206a8c39db9c8341b (patch) | |
| tree | f502d681ec66a0c6bf3c83b1a4fb3c7d5e9f7026 /fs | |
| parent | afs: Fix setting of writeback_index (diff) | |
| download | linux-dev-b428081282f85db8a0d4ae6206a8c39db9c8341b.tar.xz linux-dev-b428081282f85db8a0d4ae6206a8c39db9c8341b.zip | |
afs: Remove redundant assignment to ret
Variable ret is set to -ENOENT and -ENOMEM but this value is never
read as it is overwritten or not used later on, hence it is a
redundant assignment and can be removed.
Cleans up the following clang-analyzer warning:
fs/afs/dir.c:2014:4: warning: Value stored to 'ret' is never read
[clang-analyzer-deadcode.DeadStores].
fs/afs/dir.c:659:2: warning: Value stored to 'ret' is never read
[clang-analyzer-deadcode.DeadStores].
[DH made the following modifications:
- In afs_rename(), -ENOMEM should be placed in op->error instead of ret,
rather than the assignment being removed entirely. afs_put_operation()
will pick it up from there and return it.
- If afs_sillyrename() fails, its error code should be placed in op->error
rather than in ret also.
]
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/1619691492-83866-1-git-send-email-jiapeng.chong@linux.alibaba.com
Link: https://lore.kernel.org/r/162609465444.3133237.7562832521724298900.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/162610729052.3408253.17364333638838151299.stgit@warthog.procyon.org.uk/ # v2
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/afs/dir.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 78719f2f567e..ac829e63c570 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -656,7 +656,6 @@ static int afs_do_lookup_one(struct inode *dir, struct dentry *dentry, return ret; } - ret = -ENOENT; if (!cookie.found) { _leave(" = -ENOENT [not found]"); return -ENOENT; @@ -2020,17 +2019,20 @@ static int afs_rename(struct user_namespace *mnt_userns, struct inode *old_dir, if (d_count(new_dentry) > 2) { /* copy the target dentry's name */ - ret = -ENOMEM; op->rename.tmp = d_alloc(new_dentry->d_parent, &new_dentry->d_name); - if (!op->rename.tmp) + if (!op->rename.tmp) { + op->error = -ENOMEM; goto error; + } ret = afs_sillyrename(new_dvnode, AFS_FS_I(d_inode(new_dentry)), new_dentry, op->key); - if (ret) + if (ret) { + op->error = ret; goto error; + } op->dentry_2 = op->rename.tmp; op->rename.rehash = NULL; |