meta: fix memory leak in tc classid parser

We forgot to free the str which was allocated by xstrdup,
so memory leak will happen.

Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/src/meta.c b/src/meta.c
index 5a6fee5cdf793d0d3980a0469b2185ed82b3cc52..87eafeead389761290a3581b87a5451a75883604 100644 (file)
--- a/src/meta.c
+++ b/src/meta.c
@@ -90,7 +90,7 @@ static struct error_record *tchandle_type_parse(const struct expr *sym,
                                                struct expr **res)
 {
        uint32_t handle;
-       char *str;
+       char *str = NULL;
 
        if (strcmp(sym->identifier, "root") == 0)
                handle = TC_H_ROOT;
@@ -127,6 +127,7 @@ static struct error_record *tchandle_type_parse(const struct expr *sym,
                handle = strtoull(sym->identifier, NULL, 0);
        }
 out:
+       xfree(str);
        *res = constant_expr_alloc(&sym->location, sym->dtype,
                                   BYTEORDER_HOST_ENDIAN,
                                   sizeof(handle) * BITS_PER_BYTE, &handle);