linux-kernel - [Patch v2] USB: gadget: function: fix issue Unneeded variable: "value"

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Date:   Tue, 2 Jul 2019 00:02:41 +0530
From:   Hariprasad Kelam <hariprasad.kelam@...il.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hariprasad Kelam <hariprasad.kelam@...il.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [Patch v2] USB: gadget: function: fix issue Unneeded variable:
 "value"

fix below issue reported by coccicheck
drivers/usb/gadget/function/f_eem.c:169:7-12: Unneeded variable:
"value". Return "- EOPNOTSUPP" on line 179

We can not change return type of eem_setup as its registered with callback
function

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@...il.com>
---
v2    fix typo in commit message

 drivers/usb/gadget/function/f_eem.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/function/f_eem.c b/drivers/usb/gadget/function/f_eem.c
index c13befa..b81a91d 100644
--- a/drivers/usb/gadget/function/f_eem.c
+++ b/drivers/usb/gadget/function/f_eem.c
@@ -166,7 +166,6 @@ static struct usb_gadget_strings *eem_strings[] = {
 static int eem_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
 {
 	struct usb_composite_dev *cdev = f->config->cdev;
-	int			value = -EOPNOTSUPP;
 	u16			w_index = le16_to_cpu(ctrl->wIndex);
 	u16			w_value = le16_to_cpu(ctrl->wValue);
 	u16			w_length = le16_to_cpu(ctrl->wLength);
@@ -176,7 +175,7 @@ static int eem_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
 		w_value, w_index, w_length);
 
 	/* device either stalls (value < 0) or reports success */
-	return value;
+	return -EOPNOTSUPP;
 }
 
 
-- 
2.7.4