From 693ad5ba135d40b1379e40e928123681e2aa2c50 Mon Sep 17 00:00:00 2001 From: Subhash Jadavani Date: Thu, 25 Sep 2014 15:32:20 +0300 Subject: [PATCH] scsi: don't add scsi_device if its already visible If LLD has added scsi device (by calling scsi_add_device) before scheduling async scsi_scan_host then scsi_finish_async_scan() will end up calling scsi_sysfs_add_sdev for scsi device which was already added by LLD. This patch fixes this issue by skipping the call to scsi_sysfs_add_sdev() if it's already visible to rest of the kernel. Signed-off-by: Subhash Jadavani Signed-off-by: Dolev Raviv Reviewed-by: Hannes Reinecke Reviewed-by: Martin K. Petersen Signed-off-by: Christoph Hellwig --- drivers/scsi/scsi_scan.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index dde0c542e0b1..ba3f1e8d0d57 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1756,6 +1756,9 @@ static void scsi_sysfs_add_devices(struct Scsi_Host *shost) /* target removed before the device could be added */ if (sdev->sdev_state == SDEV_DEL) continue; + /* If device is already visible, skip adding it to sysfs */ + if (sdev->is_visible) + continue; if (!scsi_host_scan_allowed(shost) || scsi_sysfs_add_sdev(sdev) != 0) __scsi_remove_device(sdev); -- 2.20.1