From: Philippe Reynes <philippe.reynes@softathome.com>
Date: Wed, 23 Dec 2020 14:33:07 +0000 (+0100)
Subject: cmd: ubi: don't allow to rename a volume to a name that already exist
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-favicon.png?a=commitdiff_plain;h=1639988fa4c0049e6580dc781fe9bb2c94258c02;p=u-boot.git

cmd: ubi: don't allow to rename a volume to a name that already exist

This commits add a check on the command ubi rename. This check avoids
to rename a volume to with a name that is already used on another ubi
volume. If two volumes has the same name, then the ubi device can't be
mounted anymore.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
---

diff --git a/cmd/ubi.c b/cmd/ubi.c
index 171377cc66..cb14e3e1e7 100644
--- a/cmd/ubi.c
+++ b/cmd/ubi.c
@@ -264,6 +264,11 @@ static int ubi_rename_vol(char *oldname, char *newname)
 		return ENODEV;
 	}
 
+	if (!ubi_check(newname)) {
+		printf("%s: volume %s already exist\n", __func__, newname);
+		return EINVAL;
+	}
+
 	printf("Rename UBI volume %s to %s\n", oldname, newname);
 
 	if (ubi->ro_mode) {