Fix coverity defects: CID 147629

CID 147629: Type:Dereference before null check

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov
Signed-off-by: <cao.xuewen cao.xuewen@zte.com.cn>
Closes #5376

diff --git a/lib/libuutil/uu_dprintf.c b/lib/libuutil/uu_dprintf.c
index 5d5fb84a836fcef829d9074934100b5a5d4611ef..d51fa81e897b08a752dda90e26282d3db9f72b7f 100644 (file)
--- a/lib/libuutil/uu_dprintf.c
+++ b/lib/libuutil/uu_dprintf.c
@@ -68,7 +68,8 @@ uu_dprintf_create(const char *name, uu_dprintf_severity_t severity,
 {
        uu_dprintf_t *D;
 
-       if (uu_check_name(name, UU_NAME_DOMAIN) == -1) {
+       if (name != NULL &&
+           uu_check_name(name, UU_NAME_DOMAIN) == -1) {
                uu_set_error(UU_ERROR_INVALID_ARGUMENT);
                return (NULL);
        }