Patch "usb: dwc3: gadget: return error if command sent to DGCMD register fails" has been added to the 3.14-stable tree

Patch "usb: dwc3: gadget: return error if command sent to DGCMD register fails" has been added to the 3.14-stable tree

[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 DGCMD register fails

to the 3.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-dwc3-gadget-return-error-if-command-sent-to-dgcmd-register-fails.patch
and it can be found in the queue-3.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 891b1dc022955d36cf4c0f42d383226a930db7ed Mon Sep 17 00:00:00 2001
From: Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>
Date: Thu, 21 May 2015 15:46:47 +0530
Subject: usb: dwc3: gadget: return error if command sent to DGCMD register fails

From: Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>

commit 891b1dc022955d36cf4c0f42d383226a930db7ed upstream.

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: b09bb64239c8 (usb: dwc3: gadget: implement Global Command support)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/dwc3/gadget.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -299,6 +299,8 @@ int dwc3_send_gadget_generic_command(str
 		if (!(reg & DWC3_DGCMD_CMDACT)) {
 			dev_vdbg(dwc->dev, "Command Complete --> %d\n",
 					DWC3_DGCMD_STATUS(reg));
+			if (DWC3_DGCMD_STATUS(reg))
+				return -EINVAL;
 			return 0;
 		}
 


Patches currently in stable-queue which might be from subbaraya.sundeep.bhatta@xilinx.com are

queue-3.14/usb-dwc3-reset-the-transfer-resource-index-on-set_interface.patch
queue-3.14/usb-dwc3-gadget-return-error-if-command-sent-to-depcmd-register-fails.patch
queue-3.14/usb-dwc3-gadget-return-error-if-command-sent-to-dgcmd-register-fails.patch