X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=instrumentation%2Fevents%2Flttng-module%2Fblock.h;h=16043a01294df83c88f96fd01534fc879abfce37;hb=94e7e92cd7bc868f351d3e96413539df6a51f5f4;hp=6782cbbef08c53a37a33534ed2a393c0d2067400;hpb=1665dee9f59d0f53599e575ea55905593be3917f;p=lttng-modules.git

diff --git a/instrumentation/events/lttng-module/block.h b/instrumentation/events/lttng-module/block.h
index 6782cbbe..16043a01 100644
--- a/instrumentation/events/lttng-module/block.h
+++ b/instrumentation/events/lttng-module/block.h
@@ -365,7 +365,7 @@ DECLARE_EVENT_CLASS(block_bio,
 	),
 
 	TP_fast_assign(
-		tp_assign(dev, bio->bi_bdev->bd_dev)
+		tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0)
 		tp_assign(sector, bio->bi_sector)
 		tp_assign(nr_sector, bio->bi_size >> 9)
 		blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)