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-rw-r--r--fs/sysfs/symlink.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index e38d633..d2eac3c 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -66,6 +66,7 @@ static int sysfs_add_link(struct dentry * parent, const char * name, struct kobj
if (!error)
return 0;
+ kobject_put(target);
kfree(sl->link_name);
exit2:
kfree(sl);
@@ -82,12 +83,13 @@ exit1:
int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name)
{
struct dentry * dentry = kobj->dentry;
- int error = 0;
+ int error = -EEXIST;
BUG_ON(!kobj || !kobj->dentry || !name);
mutex_lock(&dentry->d_inode->i_mutex);
- error = sysfs_add_link(dentry, name, target);
+ if (!sysfs_dirent_exist(dentry->d_fsdata, name))
+ error = sysfs_add_link(dentry, name, target);
mutex_unlock(&dentry->d_inode->i_mutex);
return error;
}
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