From: Simon Glass <sjg@chromium.org>
Date: Tue, 17 Jan 2023 17:47:44 +0000 (-0700)
Subject: scsi: Remove all children of SCSI devices before rescanning
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=6febc264711cbebcd91cb06c2d1bf0b181178fcc;p=u-boot.git

scsi: Remove all children of SCSI devices before rescanning

At present this only unbinds block devices of a certain type. But SCSI
device can have different types of children, including bootdevs.

Unbind all children so tht everything is clean and ready for a new scan.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index f7add08db8..4a2d8d009a 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -644,12 +644,23 @@ int scsi_scan(bool verbose)
 	if (verbose)
 		printf("scanning bus for devices...\n");
 
-	blk_unbind_all(UCLASS_SCSI);
-
 	ret = uclass_get(UCLASS_SCSI, &uc);
 	if (ret)
 		return ret;
 
+	/* remove all children of the SCSI devices */
+	uclass_foreach_dev(dev, uc) {
+		log_debug("unbind %s\n", dev->name);
+		ret = device_chld_remove(dev, NULL, DM_REMOVE_NORMAL);
+		if (!ret)
+			ret = device_chld_unbind(dev, NULL);
+		if (ret) {
+			if (verbose)
+				printf("unable to unbind devices (%dE)\n", ret);
+			return log_msg_ret("unb", ret);
+		}
+	}
+
 	uclass_foreach_dev(dev, uc) {
 		ret = scsi_scan_dev(dev, verbose);
 		if (ret)