linux-kernel - [PATCH v2 04/29] usb: gadget: configfs: fix error path

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Date:	Fri, 27 Nov 2015 11:58:58 +0100
From:	Robert Baldyga <r.baldyga@...sung.com>
To:	balbi@...com
Cc:	gregkh@...uxfoundation.org, andrzej.p@...sung.com,
	m.szyprowski@...sung.com, b.zolnierkie@...sung.com,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Robert Baldyga <r.baldyga@...sung.com>
Subject: [PATCH v2 04/29] usb: gadget: configfs: fix error path

As usb_gstrings_attach() failure can happen when some USB functions are
are already added to some configurations (in previous loop iterations),
we should always call purge_configs_funcs() to be sure that failure is
be handled properly.

Signed-off-by: Robert Baldyga <r.baldyga@...sung.com>
---
 drivers/usb/gadget/configfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 163d305..0557f80 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1342,7 +1342,7 @@ static int configfs_composite_bind(struct usb_gadget *gadget,
 			s = usb_gstrings_attach(&gi->cdev, cfg->gstrings, 1);
 			if (IS_ERR(s)) {
 				ret = PTR_ERR(s);
-				goto err_comp_cleanup;
+				goto err_purge_funcs;
 			}
 			c->iConfiguration = s[0].id;
 		}
-- 
1.9.1

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