| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 058/125] usb: dwc3: gadget: return error if command sent to DGCMD register fails | Date | Fri, 31 Jul 2015 12:40:58 -0700 |
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3.14-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 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; }
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