wwan serial driver sets suspend flag when it goes to suspend. Driver puts any write request to delayed queue during suspend and submits the delayed write requests while resuming and clears the suspend flag after that. This creates a race condition where write request comes between queuing the delayed write request and clearing the suspend flag. CRs-Fixed: 360555 Signed-off-by: Hemant Kumar <hemantk@codeaurora.org> Change-Id: Ib15b80bb7e289db66a6306b6147f058b5e78f3e5