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authorSubbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>2015-05-21 13:16:48 +0300
committerFelipe Balbi <balbi@ti.com>2015-05-26 18:39:29 +0300
commit76e838c9f7765f9a6205b4d558d75a66104bc60d (patch)
treee3185b2b8f9ad1205021f11a29563a5186723029 /drivers/usb/dwc3
parent891b1dc022955d36cf4c0f42d383226a930db7ed (diff)
downloadlinux-76e838c9f7765f9a6205b4d558d75a66104bc60d.tar.xz
usb: dwc3: gadget: return error if command sent to DEPCMD register fails
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) Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/gadget.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index fcbe120ba8ce..55b5edc19119 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -330,6 +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;
}