From 3d7678e2a02aa99de6c4ac090e1d8fcfbd023e34 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Wed, 23 May 2018 16:53:18 +0800 Subject: [PATCH] usb: mtu3: avoid sleep in atomic context when enter test mode Use readl_poll_timeout_atomic() instead of readl_poll_timeout() in atomic context Signed-off-by: Chunfeng Yun Signed-off-by: Greg Kroah-Hartman --- drivers/usb/mtu3/mtu3_gadget_ep0.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c index 0d2b1cf1d5ea..25216e79cd6e 100644 --- a/drivers/usb/mtu3/mtu3_gadget_ep0.c +++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c @@ -299,7 +299,7 @@ static int handle_test_mode(struct mtu3 *mtu, struct usb_ctrlrequest *setup) mtu3_writel(mbase, U3D_EP0CSR, value | EP0_SETUPPKTRDY | EP0_DATAEND); /* wait for ACK status sent by host */ - readl_poll_timeout(mbase + U3D_EP0CSR, value, + readl_poll_timeout_atomic(mbase + U3D_EP0CSR, value, !(value & EP0_DATAEND), 100, 5000); mtu3_writel(mbase, U3D_USB2_TEST_MODE, mtu->test_mode_nr); -- 2.11.0