Misc: Add possibility to remove misc devices during suspend/resume

[linux-2.6-omap-h63xx.git] / drivers / char / misc.c

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 71c8cd7fa15f8d5c32574ce95016f980e6830c41..a39101feb2ed8f70ff57f5d74e1a05855bec959d 100644 (file)
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -232,8 +232,9 @@ int misc_register(struct miscdevice * misc)
 }
 
 /**
- *     misc_deregister - unregister a miscellaneous device
+ *     __misc_deregister - unregister a miscellaneous device
  *     @misc: device to unregister
+ *     @suspended: to be set if the function is used during suspend/resume
  *
  *     Unregister a miscellaneous device that was previously
  *     successfully registered with misc_register(). Success
@@ -241,7 +242,7 @@ int misc_register(struct miscdevice * misc)
  *     indicates an error.
  */
 
-int misc_deregister(struct miscdevice * misc)
+int __misc_deregister(struct miscdevice *misc, bool suspended)
 {
        int i = misc->minor;
 
@@ -250,7 +251,11 @@ int misc_deregister(struct miscdevice * misc)
 
        mutex_lock(&misc_mtx);
        list_del(&misc->list);
-       device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
+       if (suspended)
+               destroy_suspended_device(misc_class,
+                                       MKDEV(MISC_MAJOR, misc->minor));
+       else
+               device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
        if (i < DYNAMIC_MINORS && i>0) {
                misc_minors[i>>3] &= ~(1 << (misc->minor & 7));
        }
@@ -259,7 +264,7 @@ int misc_deregister(struct miscdevice * misc)
 }
 
 EXPORT_SYMBOL(misc_register);
-EXPORT_SYMBOL(misc_deregister);
+EXPORT_SYMBOL(__misc_deregister);
 
 static int __init misc_init(void)
 {