caif: Add BUG_ON if dev_info is missing in packet

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/caif/cfmuxl.c b/net/caif/cfmuxl.c
index ebfda2c..fc24974 100644 (file)
--- a/net/caif/cfmuxl.c
+++ b/net/caif/cfmuxl.c
@@ -188,7 +188,8 @@ static int cfmuxl_transmit(struct cflayer *layr, struct cfpkt *pkt)
        u8 linkid;
        struct cflayer *dn;
        struct caif_payload_info *info = cfpkt_info(pkt);
-       dn = get_dn(muxl, cfpkt_info(pkt)->dev_info);
+       BUG_ON(!info);
+       dn = get_dn(muxl, info->dev_info);
        if (dn == NULL) {
                pr_warn("Send data on unknown phy ID = %d (0x%x)\n",
                        info->dev_info->id, info->dev_info->id);