net/smc: check for valid ib_client_data

[platform/kernel/linux-rpi.git] / net / smc / smc_ib.c

diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
index e519ef2..ca505ff 100644 (file)
--- a/net/smc/smc_ib.c
+++ b/net/smc/smc_ib.c
@@ -552,6 +552,8 @@ static void smc_ib_remove_dev(struct ib_device *ibdev, void *client_data)
        struct smc_ib_device *smcibdev;
 
        smcibdev = ib_get_client_data(ibdev, &smc_ib_client);
+       if (!smcibdev || smcibdev->ibdev != ibdev)
+               return;
        ib_set_client_data(ibdev, &smc_ib_client, NULL);
        spin_lock(&smc_ib_devices.lock);
        list_del_init(&smcibdev->list); /* remove from smc_ib_devices */