Staging: hv: vmbus: Check before invoking the channel callback

[~andy/linux] / drivers / staging / hv / connection.c

diff --git a/drivers/staging/hv/connection.c b/drivers/staging/hv/connection.c
index a88ad7072566780e9eae11b250bd1c47733fe66e..7a3ec75bab18e3715eb6f30ac3878f847fc0fe63 100644 (file)
--- a/drivers/staging/hv/connection.c
+++ b/drivers/staging/hv/connection.c
@@ -222,7 +222,7 @@ static void process_chn_event(u32 relid)
         */
        channel = relid2channel(relid);
 
-       if (channel) {
+       if (channel && (channel->onchannel_callback != NULL)) {
                channel->onchannel_callback(channel->channel_callback_context);
        } else {
                pr_err("channel not found for relid - %u\n", relid);