| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 094/267] usb: dwc3: gadget: return error if command sent to DEPCMD register fails | Date | Fri, 31 Jul 2015 12:39:05 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>
commit 76e838c9f7765f9a6205b4d558d75a66104bc60d 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: 72246da40f37 (usb: Introduce DesignWare USB3 DRD Driver) 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 @@ -330,6 +330,8 @@ int dwc3_send_gadget_ep_cmd(struct dwc3 dwc3_trace(trace_dwc3_gadget, "Command Complete --> %d", DWC3_DEPCMD_STATUS(reg)); + if (DWC3_DEPCMD_STATUS(reg)) + return -EINVAL; return 0; }
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