saner proc_get_inode() calling conventions
Make it drop the pde in *all* cases when no new reference to it is
put into an inode - both when an inode had already been set up
(as we were already doing) and when inode allocation has failed.
Makes for simpler logics in callers...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 7dfe548..2983dc5 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -412,8 +412,7 @@
struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir,
struct dentry *dentry)
{
- struct inode *inode = NULL;
- int error = -ENOENT;
+ struct inode *inode;
spin_lock(&proc_subdir_lock);
for (de = de->subdir; de ; de = de->next) {
@@ -422,22 +421,16 @@
if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
pde_get(de);
spin_unlock(&proc_subdir_lock);
- error = -ENOMEM;
inode = proc_get_inode(dir->i_sb, de);
- goto out_unlock;
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ d_set_d_op(dentry, &proc_dentry_operations);
+ d_add(dentry, inode);
+ return NULL;
}
}
spin_unlock(&proc_subdir_lock);
-out_unlock:
-
- if (inode) {
- d_set_d_op(dentry, &proc_dentry_operations);
- d_add(dentry, inode);
- return NULL;
- }
- if (de)
- pde_put(de);
- return ERR_PTR(error);
+ return ERR_PTR(-ENOENT);
}
struct dentry *proc_lookup(struct inode *dir, struct dentry *dentry,