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authorDarkvater <darkvater@openttd.org>2006-12-20 21:17:33 +0000
committerDarkvater <darkvater@openttd.org>2006-12-20 21:17:33 +0000
commit28042b65ac4574a3bcf3fa2ff206e62f498492b2 (patch)
tree5b8c27872faf8943144f2948020a199b2cbb85c1 /newgrf_config.c
parent1812bcfc8c20dfea2df38da7f7b042c2d62f551b (diff)
downloadopenttd-28042b65ac4574a3bcf3fa2ff206e62f498492b2.tar.xz
(svn r7518) -Codechange: more NULL pointer resets after free.
Diffstat (limited to 'newgrf_config.c')
-rw-r--r--newgrf_config.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/newgrf_config.c b/newgrf_config.c
index b0f06d110..6caec3e04 100644
--- a/newgrf_config.c
+++ b/newgrf_config.c
@@ -96,17 +96,21 @@ void ClearGRFConfig(GRFConfig **config)
/* Clear a GRF Config list */
-void ClearGRFConfigList(GRFConfig *config)
+void ClearGRFConfigList(GRFConfig **config)
{
GRFConfig *c, *next;
- for (c = config; c != NULL; c = next) {
+ for (c = *config; c != NULL; c = next) {
next = c->next;
ClearGRFConfig(&c);
}
+ *config = NULL;
}
-/* Copy a GRF Config list */
+/** Copy a GRF Config list
+ * @param dst pointer to destination list
+ * @param srt pointer to source list values
+ * @return pointer to the last value added to the destination list */
GRFConfig **CopyGRFConfigList(GRFConfig **dst, const GRFConfig *src)
{
GRFConfig *c;
@@ -131,8 +135,7 @@ void ResetGRFConfig(bool defaults)
{
GRFConfig **c = &_grfconfig;
- ClearGRFConfigList(_grfconfig);
- _grfconfig = NULL;
+ ClearGRFConfigList(c);
if (defaults) c = CopyGRFConfigList(c, _grfconfig_newgame);
CopyGRFConfigList(c, _grfconfig_static);
@@ -244,8 +247,7 @@ void ScanNewGRFFiles(void)
{
uint num;
- ClearGRFConfigList(_all_grfs);
- _all_grfs = NULL;
+ ClearGRFConfigList(&_all_grfs);
DEBUG(grf, 1) ("[GRF] Scanning for NewGRFs");
num = ScanPath(_paths.data_dir);
@@ -388,7 +390,7 @@ static void Load_NGRF(void)
/* Append static NewGRF configuration */
CopyGRFConfigList(last, _grfconfig_static);
- ClearGRFConfigList(_grfconfig);
+ ClearGRFConfigList(&_grfconfig);
_grfconfig = first;
}