btrfs: fix race between quota disable and quota assign ioctls

[platform/kernel/linux-rpi.git] / net / rose / rose_link.c

diff --git a/net/rose/rose_link.c b/net/rose/rose_link.c
index f6102e6..730d220 100644 (file)
--- a/net/rose/rose_link.c
+++ b/net/rose/rose_link.c
@@ -236,6 +236,9 @@ void rose_transmit_clear_request(struct rose_neigh *neigh, unsigned int lci, uns
        unsigned char *dptr;
        int len;
 
+       if (!neigh->dev)
+               return;
+
        len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN + 3;
 
        if ((skb = alloc_skb(len, GFP_ATOMIC)) == NULL)