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>,
        Subbaraya Sundeep Bhatta <sbhatta@xilinx.com>
Subject: [PATCH 2/2] usb: dwc3: gadget: return error when DEPCMD or DGCMD fails
Date: Fri, 15 May 2015 00:09:30 +0530
Message-ID: <1431628770-31653-2-git-send-email-sbhatta@xilinx.com>
In-Reply-To: <1431628770-31653-1-git-send-email-sbhatta@xilinx.com>
References: <1431628770-31653-1-git-send-email-sbhatta@xilinx.com>
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When sending DEPCMD or DGCMD command fails return error to caller.

Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xilinx.com>
---
 drivers/usb/dwc3/gadget.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 8946c32..55b5edc 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -291,6 +291,8 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, unsigned cmd, u32 param)
 			dwc3_trace(trace_dwc3_gadget,
 					"Command Complete --> %d",
 					DWC3_DGCMD_STATUS(reg));
+			if (DWC3_DGCMD_STATUS(reg))
+				return -EINVAL;
 			return 0;
 		}
 
@@ -328,6 +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

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