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devices: fix dev_dm_uuid

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If a non-dm device is passed, the dm code doesn't fail and returns
some dm uuid.
This commit is contained in:
David Teigland 2024-08-01 11:30:10 -05:00
parent ae8d5113f4
commit 07576f7e51
1 changed files with 3 additions and 0 deletions
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3
lib/activate/dev_manager.c
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@ -902,6 +902,9 @@ int devno_dm_uuid(struct cmd_context *cmd, int major, int minor,
const char *uuid;
int r = 0;
if (major != cmd->dev_types->device_mapper_major)
return 0;
if (dm_devs_cache_use()) {
if ((dm_dev = dm_devs_cache_get_by_devno(cmd, MKDEV(major, minor)))) {
dm_strncpy(uuid_buf, dm_dev->uuid, uuid_buf_size);