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Fix dm_task_get_name_unmangled to not unmangle already unmangled name.

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In 'auto' and 'hex' mode, these names are already unmangled on ioctl return.
There's no point on trying to do that once again (actually it's a bug!).
This commit is contained in:
Peter Rajnoha 2012-03-05 12:45:43 +00:00
parent 921a46446d
commit 4961c3b4af
2 changed files with 8 additions and 2 deletions
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1
WHATS_NEW_DM
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@ -1,5 +1,6 @@
Version 1.02.74 -
================================
Fix dm_task_get_name_unmangled to not unmangle already unmangled name.
Check whether device names are properly mangled on ioctl return.
Deactivation of failed thin check on thin pool returns success.

9
libdm/libdm-common.c
View File

@ -588,9 +588,14 @@ char *dm_task_get_name_unmangled(const struct dm_task *dmt)
const char *s = dm_task_get_name(dmt);
char buf[DM_NAME_LEN];
char *rs = NULL;
int r;
int r = 0;
if ((r = unmangle_name(s, strlen(s), buf, sizeof(buf),
/*
* Unless the mode used is 'none', the name
* is *already* unmangled on ioctl return!
*/
if (dm_get_name_mangling_mode() == DM_STRING_MANGLING_NONE &&
(r = unmangle_name(s, strlen(s), buf, sizeof(buf),
dm_get_name_mangling_mode())) < 0)
log_error("Failed to unmangle device name \"%s\".", s);
else if (!(rs = r ? dm_strdup(buf) : dm_strdup(s)))