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-rw-r--r--drivers/mtd/mtdchar.c52
1 files changed, 24 insertions, 28 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index da3f1a8f756e..b606f811eeb4 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * $Id: mtdchar.c,v 1.70 2005/04/01 15:36:11 nico Exp $ 2 * $Id: mtdchar.c,v 1.72 2005/06/30 00:23:24 tpoynor Exp $
3 * 3 *
4 * Character-device access to raw MTD devices. 4 * Character-device access to raw MTD devices.
5 * 5 *
@@ -15,27 +15,30 @@
15#include <linux/fs.h> 15#include <linux/fs.h>
16#include <asm/uaccess.h> 16#include <asm/uaccess.h>
17 17
18#ifdef CONFIG_DEVFS_FS 18#include <linux/device.h>
19#include <linux/devfs_fs_kernel.h> 19
20static struct class *mtd_class;
20 21
21static void mtd_notify_add(struct mtd_info* mtd) 22static void mtd_notify_add(struct mtd_info* mtd)
22{ 23{
23 if (!mtd) 24 if (!mtd)
24 return; 25 return;
25 26
26 devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2), 27 class_device_create(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2),
27 S_IFCHR | S_IRUGO | S_IWUGO, "mtd/%d", mtd->index); 28 NULL, "mtd%d", mtd->index);
28 29
29 devfs_mk_cdev(MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), 30 class_device_create(mtd_class,
30 S_IFCHR | S_IRUGO, "mtd/%dro", mtd->index); 31 MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1),
32 NULL, "mtd%dro", mtd->index);
31} 33}
32 34
33static void mtd_notify_remove(struct mtd_info* mtd) 35static void mtd_notify_remove(struct mtd_info* mtd)
34{ 36{
35 if (!mtd) 37 if (!mtd)
36 return; 38 return;
37 devfs_remove("mtd/%d", mtd->index); 39
38 devfs_remove("mtd/%dro", mtd->index); 40 class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2));
41 class_device_destroy(mtd_class, MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1));
39} 42}
40 43
41static struct mtd_notifier notifier = { 44static struct mtd_notifier notifier = {
@@ -43,22 +46,6 @@ static struct mtd_notifier notifier = {
43 .remove = mtd_notify_remove, 46 .remove = mtd_notify_remove,
44}; 47};
45 48
46static inline void mtdchar_devfs_init(void)
47{
48 devfs_mk_dir("mtd");
49 register_mtd_user(&notifier);
50}
51
52static inline void mtdchar_devfs_exit(void)
53{
54 unregister_mtd_user(&notifier);
55 devfs_remove("mtd");
56}
57#else /* !DEVFS */
58#define mtdchar_devfs_init() do { } while(0)
59#define mtdchar_devfs_exit() do { } while(0)
60#endif
61
62/* 49/*
63 * We use file->private_data to store a pointer to the MTDdevice. 50 * We use file->private_data to store a pointer to the MTDdevice.
64 * Since alighment is at least 32 bits, we have 2 bits free for OTP 51 * Since alighment is at least 32 bits, we have 2 bits free for OTP
@@ -657,13 +644,22 @@ static int __init init_mtdchar(void)
657 return -EAGAIN; 644 return -EAGAIN;
658 } 645 }
659 646
660 mtdchar_devfs_init(); 647 mtd_class = class_create(THIS_MODULE, "mtd");
648
649 if (IS_ERR(mtd_class)) {
650 printk(KERN_ERR "Error creating mtd class.\n");
651 unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
652 return 1;
653 }
654
655 register_mtd_user(&notifier);
661 return 0; 656 return 0;
662} 657}
663 658
664static void __exit cleanup_mtdchar(void) 659static void __exit cleanup_mtdchar(void)
665{ 660{
666 mtdchar_devfs_exit(); 661 unregister_mtd_user(&notifier);
662 class_destroy(mtd_class);
667 unregister_chrdev(MTD_CHAR_MAJOR, "mtd"); 663 unregister_chrdev(MTD_CHAR_MAJOR, "mtd");
668} 664}
669 665