[PATCH v2 2/3] usb: dwc3: gadget: return error if command sent to DGCMD register fails
From: Subbaraya Sundeep Bhatta
Date: Thu May 21 2015 - 06:31:35 EST
We need to return error to caller if command is not sent to
controller succesfully.
Signed-off-by: Subbaraya Sundeep Bhatta <sbhatta@xxxxxxxxxx>
Fixes: b09bb64239c8 (usb: dwc3: gadget: implement Global Command support)
Cc: <stable@xxxxxxxxxxxxxxx> #v3.5+
---
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 8946c32..fcbe120 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;
}
--
1.7.4
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