Patchwork hw/9pfs: Fix crash when mounting with synthfs

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Submitter Aneesh Kumar K.V
Date Jan. 13, 2012, 9:09 a.m.
Message ID <1326445775-19598-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Download mbox | patch
Permalink /patch/135750/
State New
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Comments

Aneesh Kumar K.V - Jan. 13, 2012, 9:09 a.m.
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

Some Fsdriver backend don't have fs_root. So check for that in
migrate message.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 hw/9pfs/virtio-9p.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Patch

diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index e6ba6ba..dfe2025 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -986,7 +986,7 @@  static void v9fs_attach(void *opaque)
     s->root_fid = fid;
     /* disable migration */
     error_set(&s->migration_blocker, QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION,
-              s->ctx.fs_root, s->tag);
+              s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag);
     migrate_add_blocker(s->migration_blocker);
 out:
     put_fid(pdu, fidp);