# \[PATCH\] usb: gadget: hid: fix error code in do\_config()

- From: Dan Carpenter \<hidden\>
- Date: 2021-10-11 12:38:09 
- List: linux-usb
- Page: https://ratatoskr.run/linux-usb/2021/10/8879054
- Thread: https://ratatoskr.run/linux-usb/2021/10/8879054/t.md

```text
Return an error code if usb_get_function() fails.  Don't return success.

Fixes: 4bc8a33f2407 ("usb: gadget: hid: convert to new interface of f_hid")
Signed-off-by: Dan Carpenter <redacted>
---
 drivers/usb/gadget/legacy/hid.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c
index 5b27d289443f..3912cc805f3a 100644
--- a/drivers/usb/gadget/legacy/hid.c
+++ b/drivers/usb/gadget/legacy/hid.c
@@ -99,8 +99,10 @@ static int do_config(struct usb_configuration *c)
 
 	list_for_each_entry(e, &hidg_func_list, node) {
 		e->f = usb_get_function(e->fi);
-		if (IS_ERR(e->f))
+		if (IS_ERR(e->f)) {
+			status = PTR_ERR(e->f);
 			goto put;
+		}
 		status = usb_add_function(c, e->f);
 		if (status < 0) {
 			usb_put_function(e->f);
-- 
2.20.1

```