patch "usb: dwc3: gadget: return error if command sent to DEPCMD register" added to usb-next

patch "usb: dwc3: gadget: return error if command sent to DEPCMD register" added to usb-next

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: dwc3: gadget: return error if command sent to DEPCMD register

to my usb git tree which can be found at
    git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-next branch.

The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)

The patch will also be merged in the next major kernel release
during the merge window.

If you have any questions about this process, please let me know.


>From 76e838c9f7765f9a6205b4d558d75a66104bc60d Mon Sep 17 00:00:00 2001
From: Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>
Date: Thu, 21 May 2015 15:46:48 +0530
Subject: usb: dwc3: gadget: return error if command sent to DEPCMD register
 fails

We need to return error to caller if command is not sent to
controller succesfully.

Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xilinx.com>
Fixes: 72246da40f37 (usb: Introduce DesignWare USB3 DRD Driver)
Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/dwc3/gadget.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index fcbe120ba8ce..55b5edc19119 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -330,6 +330,8 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
 			dwc3_trace(trace_dwc3_gadget,
 					"Command Complete --> %d",
 					DWC3_DEPCMD_STATUS(reg));
+			if (DWC3_DEPCMD_STATUS(reg))
+				return -EINVAL;
 			return 0;
 		}
 
-- 
2.4.2