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author | Guido Kiener <guido@kiener-muenchen.de> | 2019-03-18 09:18:34 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 09:17:15 +0200 |
commit | 906dbadf304e859314dc2f96ebfb126f002c90cf (patch) | |
tree | 00a20ef31524993b297f5e4ffa68c33aa891f440 | |
parent | 1da2fd0163142b8dc2608459111ca3c49115877d (diff) | |
download | linux-stable-906dbadf304e859314dc2f96ebfb126f002c90cf.tar.gz linux-stable-906dbadf304e859314dc2f96ebfb126f002c90cf.tar.bz2 linux-stable-906dbadf304e859314dc2f96ebfb126f002c90cf.zip |
usb: gadget: net2272: Fix net2272_dequeue()
[ Upstream commit 091dacc3cc10979ab0422f0a9f7fcc27eee97e69 ]
Restore the status of ep->stopped in function net2272_dequeue().
When the given request is not found in the endpoint queue
the function returns -EINVAL without restoring the state of
ep->stopped. Thus the endpoint keeps blocked and does not transfer
any data anymore.
This fix is only compile-tested, since we do not have a
corresponding hardware. An analogous fix was tested in the sibling
driver. See "usb: gadget: net2280: Fix net2280_dequeue()"
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
-rw-r--r-- | drivers/usb/gadget/udc/net2272.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c index 4b2444e75840..83d0544338ca 100644 --- a/drivers/usb/gadget/udc/net2272.c +++ b/drivers/usb/gadget/udc/net2272.c @@ -962,6 +962,7 @@ net2272_dequeue(struct usb_ep *_ep, struct usb_request *_req) break; } if (&req->req != _req) { + ep->stopped = stopped; spin_unlock_irqrestore(&ep->dev->lock, flags); return -EINVAL; } |