usb: dwc3: gadget: Improve dwc3_gadget_suspend() and dwc3_gadget_resume()
authorRoger Quadros <rogerq@kernel.org>
Wed, 3 May 2023 11:00:48 +0000 (14:00 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 13 May 2023 08:30:35 +0000 (17:30 +0900)
commitc8540870af4ce6ddeb27a7bb5498b75fb29b643c
tree19834b97db2d2dc7c7e2a9a3bb2c8c3b20528c16
parent94d25e9128988c6a1fc9070f6e98215a95795bd8
usb: dwc3: gadget: Improve dwc3_gadget_suspend() and dwc3_gadget_resume()

Prevent -ETIMEDOUT error on .suspend().
e.g. If gadget driver is loaded and we are connected to a USB host,
all transfers must be stopped before stopping the controller else
we will not get a clean stop i.e. dwc3_gadget_run_stop() will take
several seconds to complete and will return -ETIMEDOUT.

Handle error cases properly in dwc3_gadget_suspend().
Simplify dwc3_gadget_resume() by using the introduced helper function.

Fixes: 9f8a67b65a49 ("usb: dwc3: gadget: fix gadget suspend/resume")
Cc: stable@vger.kernel.org
Suggested-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230503110048.30617-1-rogerq@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/dwc3/gadget.c