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Fix crash when there's no TRANS_READ_ONLY_REASON slot.

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Unsetting an empty g_value raises a fatal error, causing tests to fail
in some environments.

g_free() handles NULLs itself, no need to protect it.
This commit is contained in:
John Ralls 2018-09-09 15:02:53 -07:00
parent b2d99615ab
commit a19dcc7bd4
1 changed files with 8 additions and 10 deletions
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18
libgnucash/engine/Transaction.c
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@ -813,8 +813,7 @@ xaccFreeTransaction (Transaction *trans)
/* free up transaction strings */
CACHE_REMOVE(trans->num);
CACHE_REMOVE(trans->description);
if (trans->readonly_reason)
g_free (trans->readonly_reason);
g_free (trans->readonly_reason);
/* Just in case someone looks up freed memory ... */
trans->num = (char *) 1;
@ -2076,8 +2075,7 @@ void xaccTransClearReadOnly (Transaction *trans)
qof_instance_set_dirty(QOF_INSTANCE(trans));
xaccTransCommitEdit(trans);
if (trans->readonly_reason)
g_free (trans->readonly_reason);
g_free (trans->readonly_reason);
trans->readonly_reason = NULL;
trans->reason_cache_valid = TRUE;
}
@ -2096,8 +2094,7 @@ xaccTransSetReadOnly (Transaction *trans, const char *reason)
qof_instance_set_dirty(QOF_INSTANCE(trans));
xaccTransCommitEdit(trans);
if (trans->readonly_reason)
g_free (trans->readonly_reason);
g_free (trans->readonly_reason);
trans->readonly_reason = g_strdup (reason);
trans->reason_cache_valid = TRUE;
}
@ -2467,15 +2464,16 @@ xaccTransGetReadOnly (Transaction *trans)
qof_instance_get_kvp (QOF_INSTANCE(trans), &v, 1, TRANS_READ_ONLY_REASON);
/* Clear possible old cache value first */
if (trans->readonly_reason)
g_free (trans->readonly_reason);
g_free (trans->readonly_reason);
trans->readonly_reason = NULL;
/* Then set the new one */
if (G_VALUE_HOLDS_STRING (&v))
{
trans->readonly_reason = g_value_dup_string (&v);
g_value_unset (&v);
trans->reason_cache_valid = TRUE;
g_value_unset (&v);
trans->reason_cache_valid = TRUE;
}
}
return trans->readonly_reason;
}