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authorGreg Kurz <groug@kaod.org>2017-01-03 17:28:44 +0100
committerGreg Kurz <groug@kaod.org>2017-01-03 17:28:44 +0100
commitf2b58c43758efc61e2a49b899f5e58848489d0dc (patch)
tree698bd14d31b003dae32a730bf6ac6db0750b2a52
parent88da0b03019ecadc3faaddf81a97c7ac83448280 (diff)
9pfs: fix crash when fsdev is missing
If the user passes -device virtio-9p without the corresponding -fsdev, QEMU dereferences a NULL pointer and crashes. This is a 2.8 regression introduced by commit 702dbcc274e2c. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Li Qiang <liq3ea@gmail.com>
-rw-r--r--hw/9pfs/9p.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 97c2926aae..fa58877570 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -3525,7 +3525,7 @@ int v9fs_device_realize_common(V9fsState *s, Error **errp)
rc = 0;
out:
if (rc) {
- if (s->ops->cleanup && s->ctx.private) {
+ if (s->ops && s->ops->cleanup && s->ctx.private) {
s->ops->cleanup(&s->ctx);
}
g_free(s->tag);