linux-kernel - [PATCH 1/2 linux-next] ocfs2: remove kfree() redundant null checks

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Date:	Wed, 13 Feb 2013 12:44:35 -0700
From:	Tim Gardner <tim.gardner@...onical.com>
To:	linux-kernel@...r.kernel.org
Cc:	Tim Gardner <tim.gardner@...onical.com>,
	Mark Fasheh <mfasheh@...e.com>,
	Joel Becker <jlbec@...lplan.org>, ocfs2-devel@....oracle.com
Subject: [PATCH 1/2 linux-next] ocfs2: remove kfree() redundant null checks

smatch analysis:

fs/ocfs2/alloc.c:6138 ocfs2_begin_truncate_log_recovery() info:
 redundant null check on *tl_copy calling kfree()

fs/ocfs2/alloc.c:6755 ocfs2_zero_range_for_truncate() info:
 redundant null check on pages calling kfree()

Cc: Mark Fasheh <mfasheh@...e.com>
Cc: Joel Becker <jlbec@...lplan.org>
Cc: ocfs2-devel@....oracle.com
Signed-off-by: Tim Gardner <tim.gardner@...onical.com>
---
 fs/ocfs2/alloc.c |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 31b9463..42c0e49 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6134,11 +6134,8 @@ bail:
 		iput(tl_inode);
 	brelse(tl_bh);
 
-	if (status < 0 && (*tl_copy)) {
-		kfree(*tl_copy);
-		*tl_copy = NULL;
-		mlog_errno(status);
-	}
+	kfree(*tl_copy);
+	*tl_copy = NULL;
 
 	return status;
 }
@@ -6751,8 +6748,7 @@ int ocfs2_zero_range_for_truncate(struct inode *inode, handle_t *handle,
 		mlog_errno(ret);
 
 out:
-	if (pages)
-		kfree(pages);
+	kfree(pages);
 
 	return ret;
 }
-- 
1.7.9.5

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