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usb: chipidea: udc: check request status before setting device address

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commit b24346a240 upstream.

The complete() function may be called even though request is not
completed. In this case, it's necessary to check request status so
as not to set device address wrongly.

Fixes: 10775eb17b ("usb: chipidea: udc: update gadget states according to ch9")
cc: <stable@vger.kernel.org>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20220623030242.41796-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xu Yang
2022-06-23 11:02:42 +08:00
committed by Chris
parent e4123b090c
commit 73d214fe12
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/chipidea/udc.c
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@@ -921,6 +921,9 @@ isr_setup_status_complete(struct usb_ep *ep, struct usb_request *req)
struct ci_hdrc *ci = req->context;
unsigned long flags;
if (req->status < 0)
return;
if (ci->setaddr) {
hw_usb_set_address(ci, ci->address);
ci->setaddr = false;