2019-06-05 14:15:53

by Hariprasad Kelam

[permalink] [raw]
Subject: [PATCH] usb: gadget: at91_udc: Remove unneeded variable

at91_wakeup is always returning -EINVAL.

But usb_gadget_wakeup expects 0 on success and negative number on
failure. As per current implementation this function wont fail.

This patch removes unneeded variable and returns 0.

Issue identified by coccicheck

drivers/usb/gadget/udc/at91_udc.c:802:6-12:
Unneeded variable: "status". Return "- EINVAL" on line 821

Signed-off-by: Hariprasad Kelam <[email protected]>
---
drivers/usb/gadget/udc/at91_udc.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index 03959dc..194ffb1 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -799,7 +799,6 @@ static int at91_wakeup(struct usb_gadget *gadget)
{
struct at91_udc *udc = to_udc(gadget);
u32 glbstate;
- int status = -EINVAL;
unsigned long flags;

DBG("%s\n", __func__ );
@@ -818,7 +817,7 @@ static int at91_wakeup(struct usb_gadget *gadget)

done:
spin_unlock_irqrestore(&udc->lock, flags);
- return status;
+ return 0;
}

/* reinit == restore initial software state */
--
2.7.4