6.6-stable review patch. If anyone has any objections, please let me know.
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From: Thinh Nguyen Thinh.Nguyen@synopsys.com
commit b191a18cb5c47109ca696370a74a5062a70adfd0 upstream.
Don't go through soft-disconnection sequence if the controller hasn't started. Otherwise, there will be timeout and warning reports from the soft-disconnection flow.
Cc: stable@vger.kernel.org Fixes: 61a348857e86 ("usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend") Reported-by: Marek Szyprowski m.szyprowski@samsung.com Closes: https://lore.kernel.org/linux-usb/20240215233536.7yejlj3zzkl23vjd@synopsys.c... Tested-by: Marek Szyprowski m.szyprowski@samsung.com Signed-off-by: Thinh Nguyen Thinh.Nguyen@synopsys.com Link: https://lore.kernel.org/r/e3be9b929934e0680a6f4b8f6eb11b18ae9c7e07.170804392... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/dwc3/gadget.c | 5 +++++ 1 file changed, 5 insertions(+)
--- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2650,6 +2650,11 @@ static int dwc3_gadget_soft_disconnect(s int ret;
spin_lock_irqsave(&dwc->lock, flags); + if (!dwc->pullups_connected) { + spin_unlock_irqrestore(&dwc->lock, flags); + return 0; + } + dwc->connected = false;
/*