Handle NULL pointer passed to xlu_cfg_destroy. libvirt calls it in its
libxlDriverConfigDispose function. If the XLU_Config was not initialized
yet for some reason a crash would occour on cleanup.
Avoid the crash just like libxl_ctx_free and xtl_logger_destroy do when
called from the same context.
Signed-off-by: Olaf Hering <o...@aepfle.de>
Cc: Ian Jackson <ian.jack...@eu.citrix.com>
Cc: Stefano Stabellini <stefano.stabell...@eu.citrix.com>
Cc: Ian Campbell <ian.campb...@citrix.com>
Cc: Wei Liu <wei.l...@citrix.com>
---
Not sure if this is correct, or if libvirt should call this function
only if cfg is valid.
If this patch gets applied I suggest to apply this also to maintained
trees.
tools/libxl/libxlu_cfg.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/libxl/libxlu_cfg.c b/tools/libxl/libxlu_cfg.c
index 0a59b52..1d70909 100644
--- a/tools/libxl/libxlu_cfg.c
+++ b/tools/libxl/libxlu_cfg.c
@@ -159,6 +159,7 @@ void xlu__cfg_set_free(XLU_ConfigSetting *set) {
void xlu_cfg_destroy(XLU_Config *cfg) {
XLU_ConfigSetting *set, *set_next;
+ if (!cfg) return;
for (set= cfg->settings;
set;
set= set_next) {
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