usb: gadget: cdc2: fix error return code in cdc_do_config()

Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.

Introduced by commit 29a664 (usb: gadget: cdc2: use function
framework for ACM)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c
index c6ee6f1558c3..2c5255182769 100644
--- a/drivers/usb/gadget/cdc2.c
+++ b/drivers/usb/gadget/cdc2.c
@@ -129,8 +129,10 @@ static int __init cdc_do_config(struct usb_configuration *c)
                 return PTR_ERR(fi_serial);
 
         f_acm = usb_get_function(fi_serial);
-        if (IS_ERR(f_acm))
+        if (IS_ERR(f_acm)) {
+                status = PTR_ERR(f_acm);
                 goto err_func_acm;
+        }
 
         status = usb_add_function(c, f_acm);
         if (status)