um: fix returns without va_end

When using va_list ensure that va_start will be followed by va_end.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
index e697a41..e9f8445 100644 (file)
--- a/arch/um/drivers/net_user.c
+++ b/arch/um/drivers/net_user.c
@@ -249,21 +249,23 @@ void close_addr(unsigned char *addr, unsigned char *netmask, void *arg)
 
 char *split_if_spec(char *str, ...)
 {
-       char **arg, *end;
+       char **arg, *end, *ret = NULL;
        va_list ap;
 
        va_start(ap, str);
        while ((arg = va_arg(ap, char **)) != NULL) {
                if (*str == '\0')
-                       return NULL;
+                       goto out;
                end = strchr(str, ',');
                if (end != str)
                        *arg = str;
                if (end == NULL)
-                       return NULL;
+                       goto out;
                *end++ = '\0';
                str = end;
        }
+       ret = str;
+out:
        va_end(ap);
-       return str;
+       return ret;
 }