diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index d433f27e0ce2..aa25f8b09fe3 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -68,6 +68,7 @@ static struct attribute *aoe_attrs[] = {
 	&disk_attr_mac.attr,
 	&disk_attr_netif.attr,
 	&disk_attr_fwver.attr,
+	NULL
 };
 
 static const struct attribute_group attr_group = {
diff --git a/drivers/w1/masters/matrox_w1.c b/drivers/w1/masters/matrox_w1.c
index 2788b8ca9bb1..6f9d880ab2e9 100644
--- a/drivers/w1/masters/matrox_w1.c
+++ b/drivers/w1/masters/matrox_w1.c
@@ -215,6 +215,8 @@ static int __devinit matrox_w1_probe(struct pci_dev *pdev, const struct pci_devi
 	return 0;
 
 err_out_free_device:
+	if (dev->virt_addr)
+		iounmap(dev->virt_addr);
 	kfree(dev);
 
 	return err;
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index e77676df6713..a736d44989c4 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -147,13 +147,13 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
 	*dentry = NULL;
 	mutex_lock(&parent->d_inode->i_mutex);
 	*dentry = lookup_one_len(name, parent, strlen(name));
-	if (!IS_ERR(dentry)) {
+	if (!IS_ERR(*dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = debugfs_mkdir(parent->d_inode, *dentry, mode);
 		else 
 			error = debugfs_create(parent->d_inode, *dentry, mode);
 	} else
-		error = PTR_ERR(dentry);
+		error = PTR_ERR(*dentry);
 	mutex_unlock(&parent->d_inode->i_mutex);
 
 	return error;