From: Linus Torvalds Date: Fri, 2 Dec 2005 23:54:37 +0000 (-0800) Subject: Revert "[SCSI] fix usb storage oops" X-Git-Tag: firefly_0821_release~39721 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1b0997f561bf46689cc6e0903f342e9bf2506bf1;p=firefly-linux-kernel-4.4.55.git Revert "[SCSI] fix usb storage oops" This reverts commit 34ea80ec6a02ad02e6b9c75c478c18e5880d6713. It does a put_device() from softirq context, which is bad since it gets a semaphore for reading. Signed-off-by: Linus Torvalds --- diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index ce9d73a292e2..4afef5cdcb17 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -542,17 +542,10 @@ static void scsi_requeue_command(struct request_queue *q, struct scsi_cmnd *cmd) void scsi_next_command(struct scsi_cmnd *cmd) { - struct scsi_device *sdev = cmd->device; - struct request_queue *q = sdev->request_queue; - - /* need to hold a reference on the device before we let go of the cmd */ - get_device(&sdev->sdev_gendev); + struct request_queue *q = cmd->device->request_queue; scsi_put_command(cmd); scsi_run_queue(q); - - /* ok to remove device now */ - put_device(&sdev->sdev_gendev); } void scsi_run_host_queues(struct Scsi_Host *shost)