From 5d390403fee54a64c660b7d42f7b38d99a486b88 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 30 Nov 2012 11:54:43 +0100 Subject: [PATCH] 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 --- drivers/usb/storage/uas.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 05f1f2b..5416f2a 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; } -- 2.7.4