When src is NULL, vir_strdup will return 0 directly. This patch will set dest to NULL before vir_strdup return. Signed-off-by: yangdongsheng<yangds.fnst(a)cn.fujitsu.com> --- src/util/virstring.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/util/virstring.c b/src/util/virstring.c index b244e6c..25b5d81 100644 --- a/src/util/virstring.c +++ b/src/util/virstring.c @@ -540,8 +540,10 @@ virStrdup(char **dest, const char *funcname, size_t linenr) { - if (!src) + if (!src) { + *dest = NULL; return 0; + } if (!(*dest = strdup(src))) { if (report) virReportOOMErrorFull(domcode, filename, funcname, linenr);