[PATCH 1/1] ocfs2: Deletion of unnecessary checks before two function calls

SF Markus Elfring
2014-11-02T09:40:50Z

The functions iput() and ocfs2_free_path() test whether their argument
is NULL and then return immediately. Thus the test around the call
is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
fs/ocfs2/alloc.c | 15 +++++----------
fs/ocfs2/ioctl.c | 3 +--
fs/ocfs2/journal.c | 9 +++------
fs/ocfs2/localalloc.c | 9 +++------
fs/ocfs2/namei.c | 3 +--
fs/ocfs2/slot_map.c | 3 +--
fs/ocfs2/super.c | 3 +--
7 files changed, 15 insertions(+), 30 deletions(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index a93bf98..2e0ab63 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -3453,8 +3453,7 @@ static int ocfs2_merge_rec_right(struct ocfs2_path *left_path,
subtree_index);
}
out:
- if (right_path)
- ocfs2_free_path(right_path);
+ ocfs2_free_path(right_path);
return ret;
}

@@ -3647,8 +3646,7 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
right_path, subtree_index);
}
out:
- if (left_path)
- ocfs2_free_path(left_path);
+ ocfs2_free_path(left_path);
return ret;
}

@@ -4431,10 +4429,8 @@ ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et,
}

out:
- if (left_path)
- ocfs2_free_path(left_path);
- if (right_path)
- ocfs2_free_path(right_path);
+ ocfs2_free_path(left_path);
+ ocfs2_free_path(right_path);

return ret;
}
@@ -6157,8 +6153,7 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
}

bail:
- if (tl_inode)
- iput(tl_inode);
+ iput(tl_inode);
brelse(tl_bh);

if (status < 0 && (*tl_copy)) {
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 53e6c40..28afb56 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -606,8 +606,7 @@ bail:
if (gb_inode)
mutex_unlock(&gb_inode->i_mutex);

- if (gb_inode)
- iput(gb_inode);
+ iput(gb_inode);

brelse(bh);

diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 4b0c688..f94be68 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1009,8 +1009,7 @@ void ocfs2_journal_shutdown(struct ocfs2_super *osb)

// up_write(&journal->j_trans_barrier);
done:
- if (inode)
- iput(inode);
+ iput(inode);
}

static void ocfs2_clear_journal_error(struct super_block *sb,
@@ -1646,8 +1645,7 @@ done:
if (got_lock)
ocfs2_inode_unlock(inode, 1);

- if (inode)
- iput(inode);
+ iput(inode);

brelse(bh);

@@ -1755,8 +1753,7 @@ static int ocfs2_trylock_journal(struct ocfs2_super *osb,

ocfs2_inode_unlock(inode, 1);
bail:
- if (inode)
- iput(inode);
+ iput(inode);

return status;
}
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index 0440134..7eca277 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -358,8 +358,7 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb)
bail:
if (status < 0)
brelse(alloc_bh);
- if (inode)
- iput(inode);
+ iput(inode);

trace_ocfs2_load_local_alloc(osb->local_alloc_bits);

@@ -473,8 +472,7 @@ out_mutex:
iput(main_bm_inode);

out:
- if (local_alloc_inode)
- iput(local_alloc_inode);
+ iput(local_alloc_inode);

kfree(alloc_copy);
}
@@ -1328,8 +1326,7 @@ bail:

brelse(main_bm_bh);

- if (main_bm_inode)
- iput(main_bm_inode);
+ iput(main_bm_inode);

kfree(alloc_copy);

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 8add6f1..a02593d 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -1607,8 +1607,7 @@ bail:
if (new_inode)
sync_mapping_buffers(old_inode->i_mapping);

- if (new_inode)
- iput(new_inode);
+ iput(new_inode);

ocfs2_free_dir_lookup_result(&target_lookup_res);
ocfs2_free_dir_lookup_result(&old_entry_lookup);
diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index a88b2a4..c5c6eb0 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -322,8 +322,7 @@ static void __ocfs2_free_slot_info(struct ocfs2_slot_info *si)
if (si == NULL)
return;

- if (si->si_inode)
- iput(si->si_inode);
+ iput(si->si_inode);
if (si->si_bh) {
for (i = 0; i < si->si_blocks; i++) {
if (si->si_bh[i]) {
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 4142546..5860f0f 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1723,8 +1723,7 @@ static int ocfs2_statfs(struct dentry *dentry, struct
kstatfs *buf)
ocfs2_inode_unlock(inode, 0);
status = 0;
bail:
- if (inode)
- iput(inode);
+ iput(inode);

if (status)
mlog_errno(status);
--
2.1.3