From: Gerd Hoffmann Date: Fri, 30 Nov 2012 10:54:43 +0000 (+0100) Subject: uas: improve abort handler X-Git-Tag: firefly_0821_release~3680^2~1079^2~77 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5d390403fee54a64c660b7d42f7b38d99a486b88;p=firefly-linux-kernel-4.4.55.git uas: improve abort handler Two changes. First we check whenever the request is linked in the work list and if so take it out. Second check whenever the command is actually in flight before asking the device to cancel it via task management, and in case it isn't just zap the data urbs and finish it. Signed-off-by: Gerd Hoffmann Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 05f1f2b8c33b..5416f2a8f566 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -715,8 +715,23 @@ static int uas_eh_abort_handler(struct scsi_cmnd *cmnd) uas_log_cmd_state(cmnd, __func__); spin_lock_irqsave(&devinfo->lock, flags); cmdinfo->state |= COMMAND_ABORTED; - spin_unlock_irqrestore(&devinfo->lock, flags); - ret = uas_eh_task_mgmt(cmnd, "ABORT TASK", TMF_ABORT_TASK); + if (cmdinfo->state & IS_IN_WORK_LIST) { + spin_lock(&uas_work_lock); + list_del(&cmdinfo->list); + cmdinfo->state &= ~IS_IN_WORK_LIST; + spin_unlock(&uas_work_lock); + } + if (cmdinfo->state & COMMAND_INFLIGHT) { + spin_unlock_irqrestore(&devinfo->lock, flags); + ret = uas_eh_task_mgmt(cmnd, "ABORT TASK", TMF_ABORT_TASK); + } else { + spin_unlock_irqrestore(&devinfo->lock, flags); + uas_unlink_data_urbs(devinfo, cmdinfo); + spin_lock_irqsave(&devinfo->lock, flags); + uas_try_complete(cmnd, __func__); + spin_unlock_irqrestore(&devinfo->lock, flags); + ret = SUCCESS; + } return ret; }