[Xen-changelog] [xen-unstable] [TAPDISK] handle error case when opening VDIs

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Jake Wires <jwires@xxxxxxxxxxxxx>
# Date 1172252432 28800
# Node ID 5ba3037ea5e11bd578ca12439ee8b4f659fa866f
# Parent  ee4850bc895b0784850bd32dfd0e97ccb693fcb6
[TAPDISK] handle error case when opening VDIs
---
 tools/blktap/drivers/tapdisk.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff -r ee4850bc895b -r 5ba3037ea5e1 tools/blktap/drivers/tapdisk.c
--- a/tools/blktap/drivers/tapdisk.c    Fri Feb 23 17:02:58 2007 +0000
+++ b/tools/blktap/drivers/tapdisk.c    Fri Feb 23 09:40:32 2007 -0800
@@ -306,8 +306,11 @@ static int open_disk(struct td_state *s,
                return -ENOMEM;
 
        err = drv->td_open(d, path, 0);
-       if (err)
-               goto fail;
+       if (err) {
+               free_driver(d);
+               s->disks = NULL;
+               return -ENOMEM;
+       }
 
        /* load backing files as necessary */
        while ((err = d->drv->td_get_parent_id(d, &id)) == 0) {

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