Stop the SYSV filesystem from using iget() and read_inode().  Replace
sysv_read_inode() with sysv_iget(), and call that instead of iget().
sysv_iget() then uses iget_locked() directly and returns a proper error code
instead of an inode in the event of an error.

Signed-off-by: David Howells <[EMAIL PROTECTED]>
---

 fs/sysv/inode.c |   25 ++++++++++++++++---------
 fs/sysv/namei.c |    6 +++---
 fs/sysv/super.c |    4 ++--
 fs/sysv/sysv.h  |    1 +
 4 files changed, 22 insertions(+), 14 deletions(-)

diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 7c4e5d3..9d512a8 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -169,20 +169,27 @@ void sysv_set_inode(struct inode *inode, dev_t rdev)
                init_special_inode(inode, inode->i_mode, rdev);
 }
 
-static void sysv_read_inode(struct inode *inode)
+struct inode *sysv_iget(struct super_block *sb, unsigned int ino)
 {
-       struct super_block * sb = inode->i_sb;
        struct sysv_sb_info * sbi = SYSV_SB(sb);
        struct buffer_head * bh;
        struct sysv_inode * raw_inode;
        struct sysv_inode_info * si;
-       unsigned int block, ino = inode->i_ino;
+       struct inode *inode;
+       unsigned int block;
 
        if (!ino || ino > sbi->s_ninodes) {
                printk("Bad inode number on dev %s: %d is out of range\n",
-                      inode->i_sb->s_id, ino);
-               goto bad_inode;
+                      sb->s_id, ino);
+               return ERR_PTR(-EIO);
        }
+
+       inode = iget_locked(sb, ino);
+       if (!inode)
+               return ERR_PTR(-ENOMEM);
+       if (!(inode->i_state & I_NEW))
+               return inode;
+
        raw_inode = sysv_raw_inode(sb, ino, &bh);
        if (!raw_inode) {
                printk("Major problem: unable to read inode from dev %s\n",
@@ -214,11 +221,12 @@ static void sysv_read_inode(struct inode *inode)
                               old_decode_dev(fs32_to_cpu(sbi, si->i_data[0])));
        else
                sysv_set_inode(inode, 0);
-       return;
+       unlock_new_inode(inode);
+       return inode;
 
 bad_inode:
-       make_bad_inode(inode);
-       return;
+       iget_failed(inode);
+       return ERR_PTR(-EIO);
 }
 
 static struct buffer_head * sysv_update_inode(struct inode * inode)
@@ -328,7 +336,6 @@ static void init_once(void *p, struct kmem_cache *cachep, 
unsigned long flags)
 const struct super_operations sysv_sops = {
        .alloc_inode    = sysv_alloc_inode,
        .destroy_inode  = sysv_destroy_inode,
-       .read_inode     = sysv_read_inode,
        .write_inode    = sysv_write_inode,
        .delete_inode   = sysv_delete_inode,
        .put_super      = sysv_put_super,
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index 6bd850b..a1f1ef3 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -53,9 +53,9 @@ static struct dentry *sysv_lookup(struct inode * dir, struct 
dentry * dentry, st
        ino = sysv_inode_by_name(dentry);
 
        if (ino) {
-               inode = iget(dir->i_sb, ino);
-               if (!inode)
-                       return ERR_PTR(-EACCES);
+               inode = sysv_iget(dir->i_sb, ino);
+               if (IS_ERR(inode))
+                       return ERR_CAST(inode);
        }
        d_add(dentry, inode);
        return NULL;
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index 6f9707a..a92d104 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -332,8 +332,8 @@ static int complete_read_super(struct super_block *sb, int 
silent, int size)
        sb->s_magic = SYSV_MAGIC_BASE + sbi->s_type;
        /* set up enough so that it can read an inode */
        sb->s_op = &sysv_sops;
-       root_inode = iget(sb,SYSV_ROOT_INO);
-       if (!root_inode || is_bad_inode(root_inode)) {
+       root_inode = sysv_iget(sb,SYSV_ROOT_INO);
+       if (IS_ERR(root_inode)) {
                printk("SysV FS: get root inode failed\n");
                return 0;
        }
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 5b4fedf..71ebdbc 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -138,6 +138,7 @@ extern unsigned long sysv_count_free_blocks(struct 
super_block *);
 extern void sysv_truncate(struct inode *);
 
 /* inode.c */
+extern struct inode *sysv_iget(struct super_block *, unsigned int);
 extern int sysv_write_inode(struct inode *, int);
 extern int sysv_sync_inode(struct inode *);
 extern int sysv_sync_file(struct file *, struct dentry *, int);

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