procfs: new helper - PDE_DATA(inode)

The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data.  Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 3 deletions

diff --git a/sound/core/info.c b/sound/core/info.c
index a4e2de6874df..3aa88640808e 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -310,12 +310,10 @@ static int snd_info_entry_open(struct inode *inode, struct file *file)
         struct snd_info_entry *entry;
         struct snd_info_private_data *data;
         struct snd_info_buffer *buffer;
-        struct proc_dir_entry *p;
         int mode, err;
 
         mutex_lock(&info_mutex);
-        p = PDE(inode);
-        entry = p == NULL ? NULL : (struct snd_info_entry *)p->data;
+        entry = PDE_DATA(inode);
         if (entry == NULL || ! entry->p) {
                 mutex_unlock(&info_mutex);
                 return -ENODEV;