X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fsysfs%2Fsymlink.c;h=7b9c5bfde920fb1ea30af8f81d4313f84bf981ec;hb=dd397a6d1ae125686d97a20f983778c331093206;hp=d2eac3ceed5f31cf9735a68ecc69dc4a6c6771ed;hpb=ca94f26d2b2ee8ad76be617b35f846444fedc07b;p=linux-2.6-omap-h63xx.git

diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index d2eac3ceed5..7b9c5bfde92 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -3,9 +3,11 @@
  */
 
 #include <linux/fs.h>
+#include <linux/mount.h>
 #include <linux/module.h>
 #include <linux/kobject.h>
 #include <linux/namei.h>
+#include <asm/semaphore.h>
 
 #include "sysfs.h"
 
@@ -82,10 +84,19 @@ exit1:
  */
 int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name)
 {
-	struct dentry * dentry = kobj->dentry;
+	struct dentry *dentry = NULL;
 	int error = -EEXIST;
 
-	BUG_ON(!kobj || !kobj->dentry || !name);
+	BUG_ON(!name);
+
+	if (!kobj) {
+		if (sysfs_mount && sysfs_mount->mnt_sb)
+			dentry = sysfs_mount->mnt_sb->s_root;
+	} else
+		dentry = kobj->dentry;
+
+	if (!dentry)
+		return -EFAULT;
 
 	mutex_lock(&dentry->d_inode->i_mutex);
 	if (!sysfs_dirent_exist(dentry->d_fsdata, name))
@@ -170,7 +181,7 @@ static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *co
 		free_page((unsigned long)page);
 }
 
-struct inode_operations sysfs_symlink_inode_operations = {
+const struct inode_operations sysfs_symlink_inode_operations = {
 	.readlink = generic_readlink,
 	.follow_link = sysfs_follow_link,
 	.put_link = sysfs_put_link,