diff mbox

usb: dwc3: gadget: Add the suspend state checking when stopping gadget

Message ID df1cefd4057910a71c724ef2d5b4021bb48ebae6.1466159742.git.baolin.wang@linaro.org
State Superseded
Headers show

Commit Message

(Exiting) Baolin Wang June 17, 2016, 10:37 a.m. UTC
It will be crash to stop gadget when the dwc3 device had been into suspend
state, thus we need to check if the dwc3 device had been into suspend state
when UDC try to stop gadget.

By the way I have rebased on your 'testing/next' branch.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>

---
 drivers/usb/dwc3/gadget.c |    3 +++
 1 file changed, 3 insertions(+)

-- 
1.7.9.5

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diff mbox

Patch

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6dde376..351769e 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1791,6 +1791,9 @@  err0:
 
 static void __dwc3_gadget_stop(struct dwc3 *dwc)
 {
+	if (pm_runtime_suspended(dwc->dev))
+		return;
+
 	dwc3_gadget_disable_irq(dwc);
 	__dwc3_gadget_ep_disable(dwc->eps[0]);
 	__dwc3_gadget_ep_disable(dwc->eps[1]);