mv643xx_eth: fix unicast address filter corruption on mtu change

[safe/jmp/linux-2.6] / drivers / char / misc.c

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index eaace0d..a5e0db9 100644 (file)
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -49,6 +49,7 @@
 #include <linux/device.h>
 #include <linux/tty.h>
 #include <linux/kmod.h>
+#include <linux/smp_lock.h>
 
 /*
  * Head entry for the doubly linked miscdevice list
@@ -118,6 +119,7 @@ static int misc_open(struct inode * inode, struct file * file)
        int err = -ENODEV;
        const struct file_operations *old_fops, *new_fops = NULL;
        
+       lock_kernel();
        mutex_lock(&misc_mtx);
        
        list_for_each_entry(c, &misc_list, list) {
@@ -155,6 +157,7 @@ static int misc_open(struct inode * inode, struct file * file)
        fops_put(old_fops);
 fail:
        mutex_unlock(&misc_mtx);
+       unlock_kernel();
        return err;
 }
 
@@ -214,7 +217,7 @@ int misc_register(struct miscdevice * misc)
                misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
        dev = MKDEV(MISC_MAJOR, misc->minor);
 
-       misc->this_device = device_create(misc_class, misc->parent, dev,
+       misc->this_device = device_create(misc_class, misc->parent, dev, NULL,
                                          "%s", misc->name);
        if (IS_ERR(misc->this_device)) {
                err = PTR_ERR(misc->this_device);