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Subject[PATCH 1/7] ocfs2: Deletion of unnecessary checks before three function calls
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 21 Feb 2015 17:40:57 +0100

The functions kfree(), ocfs2_free_path() and __ocfs2_free_slot_info() test
whether their argument is NULL and then return immediately.
Thus the test around their calls 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 | 17 +++++------------
fs/ocfs2/slot_map.c | 2 +-
fs/ocfs2/stack_user.c | 2 +-
3 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 044158b..fdab27c 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;
}

@@ -4431,11 +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;
}

@@ -6996,9 +6991,7 @@ out_commit:
out:
if (data_ac)
ocfs2_free_alloc_context(data_ac);
- if (pages)
- kfree(pages);
-
+ kfree(pages);
return ret;
}

diff --git a/fs/ocfs2/slot_map.c b/fs/ocfs2/slot_map.c
index d5493e3..c5e530a 100644
--- a/fs/ocfs2/slot_map.c
+++ b/fs/ocfs2/slot_map.c
@@ -452,7 +452,7 @@ int ocfs2_init_slot_info(struct ocfs2_super *osb)

osb->slot_info = (struct ocfs2_slot_info *)si;
bail:
- if (status < 0 && si)
+ if (status < 0)
__ocfs2_free_slot_info(si);

return status;
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index 720aa38..c3b7807 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -1063,7 +1063,7 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
}

out:
- if (rc && lc)
+ if (rc)
kfree(lc);
return rc;
}
--
2.3.0


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