[RESEND/PATCH] usb: gadget: dummy_hcd: Fix error path

From: Rahul Ruikar
Date: Sat Oct 02 2010 - 11:13:04 EST


In function dummy_udc_probe()
call put_device() when device_register() fails.
also usb_get_hcd() put before device_register() after review comment
from Alan Stern.

Signed-off-by: Rahul Ruikar <rahul.ruikar@xxxxxxxxx>
---
drivers/usb/gadget/dummy_hcd.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index dc65462..9b30483 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -874,6 +874,8 @@ static int dummy_udc_probe (struct platform_device *pdev)
struct dummy *dum = the_controller;
int rc;

+ usb_get_hcd(dummy_to_hcd(dum));
+
dum->gadget.name = gadget_name;
dum->gadget.ops = &dummy_ops;
dum->gadget.is_dualspeed = 1;
@@ -885,10 +887,10 @@ static int dummy_udc_probe (struct platform_device *pdev)
dum->gadget.dev.parent = &pdev->dev;
dum->gadget.dev.release = dummy_gadget_release;
rc = device_register (&dum->gadget.dev);
- if (rc < 0)
+ if (rc < 0) {
+ put_device(&dum->gadget.dev);
return rc;
-
- usb_get_hcd (dummy_to_hcd (dum));
+ }

platform_set_drvdata (pdev, dum);
rc = device_create_file (&dum->gadget.dev, &dev_attr_function);
--
1.7.2.3

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