From: zengjx95@gmail.com
To: reiserfs-devel@vger.kernel.org
Cc: willy@infradead.org, jlayton@kernel.org,
damien.lemoal@opensource.wdc.com, jack@suse.cz,
edward.shishkin@gmail.com, linux-kernel@vger.kernel.org,
Zeng Jingxiang <linuszeng@tencent.com>
Subject: [PATCH] fs/reiserfs/inode: remove dead code in _get_block_create_0()
Date: Wed, 20 Jul 2022 14:33:10 +0800 [thread overview]
Message-ID: <20220720063310.992149-1-zengjx95@gmail.com> (raw)
From: Zeng Jingxiang <linuszeng@tencent.com>
Fix "control flow" issues found by Coverity
Logically dead code (DEADCODE)
Execution cannot reach this statement.
Assigned_value: Assigning value NULL to p here
293 char *p = NULL;
In the following conditional expression, the value of p is always NULL,
as a result, the kunmap() cannot be executed.
308 if (p)
309 kunmap(bh_result->b_page);
355 if (p)
356 kunmap(bh_result->b_page);
366 if (p)
367 kunmap(bh_result->b_page);
Signed-off-by: Zeng Jingxiang <linuszeng@tencent.com>
---
fs/reiserfs/inode.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 0cffe054b78e..d1b0c7645fcb 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -305,8 +305,6 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
result = search_for_position_by_key(inode->i_sb, &key, &path);
if (result != POSITION_FOUND) {
pathrelse(&path);
- if (p)
- kunmap(bh_result->b_page);
if (result == IO_ERROR)
return -EIO;
/*
@@ -352,8 +350,6 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
}
pathrelse(&path);
- if (p)
- kunmap(bh_result->b_page);
return ret;
}
/* requested data are in direct item(s) */
@@ -363,8 +359,6 @@ static int _get_block_create_0(struct inode *inode, sector_t block,
* when it is stored in direct item(s)
*/
pathrelse(&path);
- if (p)
- kunmap(bh_result->b_page);
return -ENOENT;
}
--
2.27.0
next reply other threads:[~2022-07-20 6:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-20 6:33 zengjx95 [this message]
2022-07-20 6:57 ` [PATCH] fs/reiserfs/inode: remove dead code in _get_block_create_0() Al Viro
-- strict thread matches above, loose matches on Subject: below --
2022-07-20 8:30 zengjx95
2022-07-26 10:48 ` Jan Kara
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