Merge branch 'debugfs_automount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs into trace/ftrace/tracefs

Pull in Al Viro's changes to debugfs that implement the new primitive:
debugfs_create_automount(), that creates a directory in debugfs that will
safely mount another file system automatically when debugfs is mounted.

This will let tracefs automount itself on top of debugfs/tracing directory.

2 files changed, 13 insertions, 8 deletions

diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
index 699e38c73d82..697a741a0cb1 100644
--- a/drivers/usb/phy/phy-mv-usb.c
+++ b/drivers/usb/phy/phy-mv-usb.c
@@ -338,7 +338,6 @@ static void mv_otg_update_inputs(struct mv_otg *mvotg)
 static void mv_otg_update_state(struct mv_otg *mvotg)
 {
 	struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl;
-	struct usb_phy *phy = &mvotg->phy;
 	int old_state = mvotg->phy.otg->state;
 
 	switch (old_state) {
@@ -858,10 +857,10 @@ static int mv_otg_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct mv_otg *mvotg = platform_get_drvdata(pdev);
 
-	if (mvotg->phy.state != OTG_STATE_B_IDLE) {
+	if (mvotg->phy.otg->state != OTG_STATE_B_IDLE) {
 		dev_info(&pdev->dev,
 			 "OTG state is not B_IDLE, it is %d!\n",
-			 mvotg->phy.state);
+			 mvotg->phy.otg->state);
 		return -EAGAIN;
 	}
 
diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index b4066a001ba0..ccfdfb24b240 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -34,7 +34,7 @@ static struct usb_phy *__usb_find_phy(struct list_head *list,
 		return phy;
 	}
 
-	return ERR_PTR(-ENODEV);
+	return ERR_PTR(-EPROBE_DEFER);
 }
 
 static struct usb_phy *__usb_find_phy_dev(struct device *dev,
@@ -59,6 +59,9 @@ static struct usb_phy *__of_usb_find_phy(struct device_node *node)
 {
 	struct usb_phy  *phy;
 
+	if (!of_device_is_available(node))
+		return ERR_PTR(-ENODEV);
+
 	list_for_each_entry(phy, &phy_list, head) {
 		if (node != phy->dev->of_node)
 			continue;
@@ -66,7 +69,7 @@ static struct usb_phy *__of_usb_find_phy(struct device_node *node)
 		return phy;
 	}
 
-	return ERR_PTR(-ENODEV);
+	return ERR_PTR(-EPROBE_DEFER);
 }
 
 static void devm_usb_phy_release(struct device *dev, void *res)
@@ -190,10 +193,13 @@ struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
 	spin_lock_irqsave(&phy_lock, flags);
 
 	phy = __of_usb_find_phy(node);
-	if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
-		if (!IS_ERR(phy))
-			phy = ERR_PTR(-EPROBE_DEFER);
+	if (IS_ERR(phy)) {
+		devres_free(ptr);
+		goto err1;
+	}
 
+	if (!try_module_get(phy->dev->driver->owner)) {
+		phy = ERR_PTR(-ENODEV);
 		devres_free(ptr);
 		goto err1;
 	}