On Tue, Jul 10, 2007 at 01:56:46PM +0900, YOSHIFUJI Hideaki / ?$B5HF#1QL@ wrote:
quoted text
> @@ -283,6 +283,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
>  	mutex_lock(&inode->i_mutex);
>  	if (!(set = inode->i_private)) {
>  		if (!(set = inode->i_private = kmalloc(sizeof(struct sysfs_buffer_collection), GFP_KERNEL))) {
> +			mutex_unlock(&inode->i_mutex);
>  			error = -ENOMEM;
>  			goto Done;
>  		} else {

Not related to your code, but whoever wrote this code originally deserves
a big slap in the face for writing such obsfucated code.  This should be
something like:

 	mutex_lock(&inode->i_mutex);
 	set = inode->i_private;
	if (!set) {
 		set = kmalloc(sizeof(struct sysfs_buffer_collection),
				GFP_KERNEL))) {
		if (!set)
			mutex_unlock(&inode->i_mutex);
 			error = -ENOMEM;
 			goto Done;
 		}
		INIT_LIST_HEAD(&set->associates);
		inode->i_private = set;
	}
	mutex_unlock(&inode->i_mutex);

-
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