diff options
| author | Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com> | 2015-05-21 15:46:47 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 09:29:44 -0700 |
| commit | 265f7f397d9e22c9dab190f568840e4885f0d081 (patch) | |
| tree | 25b1d0a1edffce773db6c1732d962c4244ce3a3e | |
| parent | 2b265a7d06ff7ded5821a2447c97f36b020e99af (diff) | |
usb: dwc3: gadget: return error if command sent to DGCMD register fails
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>
| -rw-r--r-- | 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 87f8fc63b3e1..be6fa45be101 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -319,6 +319,8 @@ int dwc3_send_gadget_generic_command(struct dwc3 *dwc, int cmd, u32 param) 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; } |