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fs/proc.c: use rb_entry_safe() instead of rb_entry()

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Better to use existing macro that rewriting them.

Signed-off-by: Nicolas Dichtel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Nicolas Dichtel 2014-12-10 15:45:07 -08:00 • committed by Linus Torvalds
commit 2fc1e948e8
1 changed files with 4 additions and 12 deletions
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16
fs/proc/generic.c
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@ -41,22 +41,14 @@ static int proc_match(unsigned int len, const char *name, struct proc_dir_entry
static struct proc_dir_entry *pde_subdir_first(struct proc_dir_entry *dir)
{
struct rb_node *node = rb_first(&dir->subdir);
if (node == NULL)
return NULL;
return rb_entry(node, struct proc_dir_entry, subdir_node);
return rb_entry_safe(rb_first(&dir->subdir), struct proc_dir_entry,
subdir_node);
}
static struct proc_dir_entry *pde_subdir_next(struct proc_dir_entry *dir)
{
struct rb_node *node = rb_next(&dir->subdir_node);
if (node == NULL)
return NULL;
return rb_entry(node, struct proc_dir_entry, subdir_node);
return rb_entry_safe(rb_next(&dir->subdir_node), struct proc_dir_entry,
subdir_node);
}
static struct proc_dir_entry *pde_subdir_find(struct proc_dir_entry *dir,