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Date: Fri, 04 Dec 2009 02:33:06 +0800
From: Coly Li <coly.li@...e.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Steve French <sfrench@...ba.org>,
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
Christoph Hellwig <hch@...radead.org>,
KONISHI Ryusuke <konishi.ryusuke@....ntt.co.jp>,
Bob Copeland <me@...copeland.com>,
Anders Larsen <al@...rsen.net>
Subject: [PATCH] remove compiling warning by adding uninitialized_var()
This patch removes some "may be used uninitialized" compiling warnings by adding uninitialized_var(), while the
uninitialized variables are initialized properly.
Signed-off-by: Coly Li <coly.li@...e.de>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Steve French <sfrench@...ba.org>
Cc: OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: KONISHI Ryusuke <konishi.ryusuke@....ntt.co.jp>
Cc: Bob Copeland <me@...copeland.com>
Cc: Anders Larsen <al@...rsen.net>
---
fs/cifs/cifssmb.c | 2 +-
fs/fat/namei_vfat.c | 6 ++++--
fs/freevxfs/vxfs_lookup.c | 2 +-
fs/nilfs2/btree.c | 3 ++-
fs/omfs/file.c | 2 +-
fs/qnx4/namei.c | 2 +-
6 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 941441d..87a6edc 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3043,7 +3043,7 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
__u32 parm_len;
__u32 acl_len;
struct smb_com_ntransact_rsp *pSMBr;
- char *pdata;
+ char *uninitialized_var(pdata);
/* validate_nttransact */
rc = validate_ntransact(iov[0].iov_base, (char **)&parm,
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index f565f24..9fdd7e9 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -587,12 +587,14 @@ static int vfat_build_slots(struct inode *dir, const unsigned char *name,
struct fat_mount_options *opts = &sbi->options;
struct msdos_dir_slot *ps;
struct msdos_dir_entry *de;
- unsigned char cksum, lcase;
+ unsigned char cksum;
+ unsigned char uninitialized_var(lcase);
unsigned char msdos_name[MSDOS_NAME];
wchar_t *uname;
__le16 time, date;
u8 time_cs;
- int err, ulen, usize, i;
+ int err, usize, i;
+ int uninitialized_var(ulen);
loff_t offset;
*nr_slots = 0;
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index aee049c..02c9718 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -174,7 +174,7 @@ static ino_t
vxfs_inode_by_name(struct inode *dip, struct dentry *dp)
{
struct vxfs_direct *de;
- struct page *pp;
+ struct page *uninitialized_var(pp);
ino_t ino = 0;
de = vxfs_find_entry(dip, dp, &pp);
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index e25b507..4e6edda 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -1911,7 +1911,8 @@ static int nilfs_btree_propagate_v(struct nilfs_btree *btree,
struct nilfs_btree_path *path,
int level, struct buffer_head *bh)
{
- int maxlevel, ret;
+ int ret;
+ int uninitialized_var(maxlevel);
struct nilfs_btree_node *parent;
struct inode *dat = nilfs_bmap_get_dat(&btree->bt_bmap);
__u64 ptr;
diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index 399487c..f01e1e8 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -222,7 +222,7 @@ static int omfs_get_block(struct inode *inode, sector_t block,
struct buffer_head *bh;
sector_t next, offset;
int ret;
- u64 new_block;
+ u64 uninitialized_var(new_block);
u32 max_extents;
int extent_count;
struct omfs_extent *oe;
diff --git a/fs/qnx4/namei.c b/fs/qnx4/namei.c
index ae1e7ed..4e60c3b 100644
--- a/fs/qnx4/namei.c
+++ b/fs/qnx4/namei.c
@@ -101,7 +101,7 @@ static struct buffer_head *qnx4_find_entry(int len, struct inode *dir,
struct dentry * qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
- int ino;
+ int uninitialized_var(ino);
struct qnx4_inode_entry *de;
struct qnx4_link_info *lnk;
struct buffer_head *bh;
--
Coly Li
SuSE Labs
--
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