Mathias Nyman
d03d96330d
[ Upstream commitbd82873f23] spin_unlock_irqrestore() might be called with stale flags after reading port status, possibly restoring interrupts to a incorrect state. If a usb2 port just finished resuming while the port status is read the spin lock will be temporary released and re-acquired in a separate function. The flags parameter is passed as value instead of a pointer, not updating flags properly before the final spin_unlock_irqrestore() is called. Cc: <stable@vger.kernel.org> # v3.12+ Fixes:8b3d45705e("usb: Fix xHCI host issues on remote wakeup.") Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20191211142007.8847-7-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>