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[Qemu-devel] [PATCH] 9pfs: fix crash when fsdev is missing
From: |
Greg Kurz |
Subject: |
[Qemu-devel] [PATCH] 9pfs: fix crash when fsdev is missing |
Date: |
Mon, 19 Dec 2016 15:28:07 +0100 |
User-agent: |
StGit/0.17.1-20-gc0b1b-dirty |
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 <address@hidden>
---
hw/9pfs/9p.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
index faebd91f5fab..68725b7a1c97 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -3521,7 +3521,7 @@ 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);
- [Qemu-devel] [PATCH] 9pfs: fix crash when fsdev is missing,
Greg Kurz <=