swconfig: fix un-initialized return value

Fix CID 1330844

Found-by: Coverity
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
(backported from e37ad4e5ca2e70387656da81704ee4d4589c6d70)

diff --git a/package/network/config/swconfig/src/swlib.c b/package/network/config/swconfig/src/swlib.c
index e6e9aead474b5f2177d316a68dad0161b6e952b4..0fb8ebb392c63f6e8a659d5645d22ccc257adc46 100644 (file)
--- a/package/network/config/swconfig/src/swlib.c
+++ b/package/network/config/swconfig/src/swlib.c
@@ -92,7 +92,7 @@ swlib_call(int cmd, int (*call)(struct nl_msg *, void *),
        struct nl_cb *cb = NULL;
        int finished;
        int flags = 0;
-       int err;
+       int err = 0;
 
        msg = nlmsg_alloc();
        if (!msg) {
@@ -105,7 +105,8 @@ swlib_call(int cmd, int (*call)(struct nl_msg *, void *),
 
        genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), 0, flags, cmd, 0);
        if (data) {
-               if (data(msg, arg) < 0)
+               err = data(msg, arg);
+               if (err < 0)
                        goto nla_put_failure;
        }