From f8f41ae668040d58271e03bc85b58e13becb14af Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 2 Jan 2017 09:40:09 +0100
Subject: [PATCH] scsi: dm: Unbind all scsi based block devices before new scan
New scan should unbind all block devices not to be listed again.
Without this patch if scsi reset or scan is called new block devices are
created which point to the same id and lun.
For example:
ZynqMP> scsi scan
scsi_scan: if_type=2, devnum=0: sdhci@ff170000.blk, 6, 0
scsi_scan: if_type=2, devnum=0: ahci@fd0c0000.id1lun0, 2, 0
scsi_scan: if_type=2, devnum=0: ahci@fd0c0000.id1lun0, 2, 1
scsi_scan: if_type=2, devnum=0: ahci@fd0c0000.id1lun0, 2, 2
scsi_scan: if_type=2, devnum=0: ahci@fd0c0000.id1lun0, 2, 3
scsi_scan: if_type=2, devnum=0: ahci@fd0c0000.id1lun0, 2, 4
scanning bus for devices...
Device 0: (1:0) Vendor: ATA Prod.: KINGSTON SVP200S Rev: 501A
Type: Hard Disk
Capacity: 57241.8 MB = 55.9 GB (117231408 x 512)
Reported-by: Ken Ma <make@marvell.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Simon Glass <sjg@chromium.org>
---
common/scsi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/common/scsi.c b/common/scsi.c
index e7efa5ae797..fb5b407f6b1 100644
--- a/common/scsi.c
+++ b/common/scsi.c
@@ -559,6 +559,8 @@ int scsi_scan(int mode)
if (mode == 1)
printf("scanning bus for devices...\n");
+ blk_unbind_all(IF_TYPE_SCSI);
+
ret = uclass_get(UCLASS_SCSI, &uc);
if (ret)
return ret;
--
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