lguest: fix occasional crash in example launcher.
commit ca16f580a5db7e60bfafe59a50bb133bd3347491 upstream.
We usually got away with ->next on the final entry being NULL, but it
finally bit me.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index f759f4f..fd2f922 100644
--- a/tools/lguest/lguest.c
+++ b/tools/lguest/lguest.c
@@ -1299,6 +1299,7 @@
dev->feature_len = 0;
dev->num_vq = 0;
dev->running = false;
+ dev->next = NULL;
/*
* Append to device list. Prepending to a single-linked list is