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[PATCH] hppfs: fix symlink error path 

While touching this code I noticed the error handling is bogus, so I
fixed it up.

I've removed the IS_ERR(proc_dentry) check, which will never trigger and
is clearly a typo: we must check proc_file instead.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2005-08-26 16:57:53 +02:00 committed by Linus Torvalds
parent d7a60d50d7
commit fd589e0b66
1 changed files with 9 additions and 15 deletions
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24
fs/hppfs/hppfs_kern.c
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@ -38,7 +38,7 @@ struct hppfs_inode_info {
static inline struct hppfs_inode_info *HPPFS_I(struct inode *inode)
{
return(list_entry(inode, struct hppfs_inode_info, vfs_inode));
return container_of(inode, struct hppfs_inode_info, vfs_inode);
}
#define HPPFS_SUPER_MAGIC 0xb00000ee
@ -662,38 +662,32 @@ static int hppfs_readlink(struct dentry *dentry, char *buffer, int buflen)
{
struct file *proc_file;
struct dentry *proc_dentry;
int (*readlink)(struct dentry *, char *, int);
int err, n;
int ret;
proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
proc_file = dentry_open(dget(proc_dentry), NULL, O_RDONLY);
err = PTR_ERR(proc_dentry);
if(IS_ERR(proc_dentry))
return(err);
if (IS_ERR(proc_file))
return PTR_ERR(proc_file);
readlink = proc_dentry->d_inode->i_op->readlink;
n = (*readlink)(proc_dentry, buffer, buflen);
ret = proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer, buflen);
fput(proc_file);
return(n);
return ret;
}
static void* hppfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct file *proc_file;
struct dentry *proc_dentry;
void * (*follow_link)(struct dentry *, struct nameidata *);
void *ret;
proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
proc_file = dentry_open(dget(proc_dentry), NULL, O_RDONLY);
if (IS_ERR(proc_file))
return proc_file;
if (IS_ERR(proc_dentry))
return proc_dentry;
follow_link = proc_dentry->d_inode->i_op->follow_link;
ret = (*follow_link)(proc_dentry, nd);
ret = proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd);
fput(proc_file);