linux-kernel - [PATCH] usb: gadget: goku

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Message-Id: <1286115016-2759-1-git-send-email-rahul.ruikar@gmail.com>
Date:	Sun,  3 Oct 2010 19:40:16 +0530
From:	Rahul Ruikar <rahul.ruikar@...il.com>
To:	David Brownell <dbrownell@...rs.sourceforge.net>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Dan Carpenter <error27@...il.com>, nm127@...email.hu
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Rahul Ruikar <rahul.ruikar@...il.com>
Subject: [PATCH] usb: gadget: goku_udc: Fix error path

call put_device() when device_register() fails.

Signed-off-by: Rahul Ruikar <rahul.ruikar@...il.com>
---
 drivers/usb/gadget/goku_udc.c |    7 ++++++-
 drivers/usb/gadget/goku_udc.h |    3 ++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index 1088d08..080779b 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1847,8 +1847,13 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	/* done */
 	the_controller = dev;
 	retval = device_register(&dev->gadget.dev);
-	if (retval == 0)
+	if (retval != 0) {
+		dev_reg_status = 2;
+		goto done;
+	} else {
+		dev_reg_status = 1;
 		return 0;
+	}
 
 done:
 	if (dev)
diff --git a/drivers/usb/gadget/goku_udc.h b/drivers/usb/gadget/goku_udc.h
index 566cb23..c27b9e2 100644
--- a/drivers/usb/gadget/goku_udc.h
+++ b/drivers/usb/gadget/goku_udc.h
@@ -251,7 +251,8 @@ struct goku_udc {
 					got_region:1,
 					req_config:1,
 					configured:1,
-					enabled:1;
+					enabled:1,
+					dev_reg_status:2;
 
 	/* pci state used to access those endpoints */
 	struct pci_dev			*pdev;
-- 
1.7.2.3

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