Make /proc/misc use seq_list_xxx helpers

Simple and stupid - just use the helpers.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 15 deletions

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 4e6fb9651a16..71c8cd7fa15f 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -67,25 +67,13 @@ extern int pmu_device_init(void);
 #ifdef CONFIG_PROC_FS
 static void *misc_seq_start(struct seq_file *seq, loff_t *pos)
 {
-        struct miscdevice *p;
-        loff_t off = 0;
-
         mutex_lock(&misc_mtx);
-        list_for_each_entry(p, &misc_list, list) {
-                if (*pos == off++) 
-                        return p;
-        }
-        return NULL;
+        return seq_list_start(&misc_list, *pos);
 }
 
 static void *misc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
-        struct list_head *n = ((struct miscdevice *)v)->list.next;
-
-        ++*pos;
-
-        return (n != &misc_list) ? list_entry(n, struct miscdevice, list)
-                 : NULL;
+        return seq_list_next(v, &misc_list, pos);
 }
 
 static void misc_seq_stop(struct seq_file *seq, void *v)
@@ -95,7 +83,7 @@ static void misc_seq_stop(struct seq_file *seq, void *v)
 
 static int misc_seq_show(struct seq_file *seq, void *v)
 {
-        const struct miscdevice *p = v;
+        const struct miscdevice *p = list_entry(v, struct miscdevice, list);
 
         seq_printf(seq, "%3i %s\n", p->minor, p->name ? p->name : "");
         return 0;