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From: Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>
To: <balbi@ti.com>
Cc: <gregkh@linuxfoundation.org>, <linux-usb@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <stable@vger.kernel.org>,
	"Subbaraya Sundeep Bhatta" <sbhatta@xilinx.com>
Subject: [PATCH v2 3/3] usb: dwc3: gadget: return error if command sent to DEPCMD register fails
Date: Thu, 21 May 2015 15:46:48 +0530	[thread overview]
Message-ID: <1432203408-5482-3-git-send-email-sbhatta@xilinx.com> (raw)
In-Reply-To: <1432203408-5482-1-git-send-email-sbhatta@xilinx.com>

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>
---
v2 changes:
	Added Fixes and Cc in commit message.

 drivers/usb/dwc3/gadget.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index fcbe120..55b5edc 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;
 		}
 
-- 
1.7.4


  parent reply	other threads:[~2015-05-21 10:32 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-21 10:16 [PATCH v2 1/3] usb: dwc3: gadget: Fix incorrect DEPCMD and DGCMD status macros Subbaraya Sundeep Bhatta
2015-05-21 10:16 ` [PATCH v2 2/3] usb: dwc3: gadget: return error if command sent to DGCMD register fails Subbaraya Sundeep Bhatta
2015-05-21 10:16 ` Subbaraya Sundeep Bhatta [this message]
2015-06-29 21:47   ` [PATCH v2 3/3] usb: dwc3: gadget: return error if command sent to DEPCMD " Felipe Balbi
2015-06-29 21:48     ` Felipe Balbi
2015-06-29 23:59       ` John Youn
2015-06-30  0:34         ` Felipe Balbi
2015-07-02  2:03       ` John Youn
2015-07-02  3:00         ` Felipe Balbi
2015-07-07  2:10           ` John Youn
2015-07-07  3:24             ` Felipe Balbi
     [not found]               ` <F1B223389110CE49B4CF055ABA2E5D3D7825118A@XAP-PVEXMBX02.xlnx.xilinx.com>
2015-07-11 19:29                 ` Felipe Balbi
2015-07-13 17:50                   ` John Youn
2015-07-13 18:58                     ` Felipe Balbi
2015-07-15  9:49                       ` Subbaraya Sundeep Bhatta
2015-07-20 17:51                         ` Felipe Balbi
2015-07-20 18:16                           ` John Youn
2015-07-20 18:37                             ` Felipe Balbi
2015-07-01  7:29     ` Subbaraya Sundeep Bhatta
2015-07-06 17:07       ` Felipe Balbi
2015-07-07  5:01         ` Subbaraya Sundeep Bhatta
2015-07-08  9:50         ` Subbaraya Sundeep Bhatta
2015-07-08 18:16           ` Felipe Balbi

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