File _service:tar_scm:0011-13-dm-disk.rules-check-DM... of Package lvm2

File _service:tar_scm:0011-13-dm-disk.rules-check-DM_NAME-before-create-symlink.patch of Package lvm2 (Revision 7fb5f160292b1061e730873e1ccb10ef)

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From 2a6d6907e05a8ea25b9dd5d24c08d588e689c905 Mon Sep 17 00:00:00 2001
From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Date: Sun, 30 Jan 2022 11:14:01 +0800
Subject: [PATCH] 13-dm-disk.rules: check DM_NAME before create symlink

It is necessary to determin whether DM_NAME is NULL before
generating the symlink, otherwise the symlink systemd cannot
be deleted automatically, and there will be left.

Signed-off-by: wuguagnhao <wuguanghao3@huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
---
 udev/13-dm-disk.rules.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/udev/13-dm-disk.rules.in b/udev/13-dm-disk.rules.in
index dca00bc..0ca0d57 100644
--- a/udev/13-dm-disk.rules.in
+++ b/udev/13-dm-disk.rules.in
@@ -14,7 +14,7 @@ ACTION!="add|change", GOTO="dm_end"
 ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="dm_end"
 ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="dm_end"
 
-SYMLINK+="disk/by-id/dm-name-$env{DM_NAME}"
+ENV{DM_NAME}=="?*", SYMLINK+="disk/by-id/dm-name-$env{DM_NAME}"
 ENV{DM_UUID}=="?*", SYMLINK+="disk/by-id/dm-uuid-$env{DM_UUID}"
 
 ENV{DM_SUSPENDED}=="1", ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}=="1", GOTO="dm_import"
-- 
2.33.0