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[01/15] hw/xen_disk: ioreq not finished on error

Message ID 1302187764-16421-2-git-send-email-kwolf@redhat.com
State New
Headers show

Commit Message

Kevin Wolf April 7, 2011, 2:49 p.m. UTC 
From: Feiran Zheng <famcool@gmail.com>

Bug fix: routines 'ioreq_runio_qemu_sync' and 'ioreq_runio_qemu_aio'
won't call 'ioreq_unmap' or 'ioreq_finish' on errors, leaving ioreq in
the blkdev->inflight list and a leak.

Signed-off-by: Feiran Zheng <famcool@gmail.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 hw/xen_disk.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/hw/xen_disk.c b/hw/xen_disk.c
index 445bf03..558bf8a 100644
--- a/hw/xen_disk.c
+++ b/hw/xen_disk.c
@@ -310,7 +310,7 @@  static int ioreq_runio_qemu_sync(struct ioreq *ioreq)
     off_t pos;
 
     if (ioreq->req.nr_segments && ioreq_map(ioreq) == -1)
-	goto err;
+	goto err_no_map;
     if (ioreq->presync)
 	bdrv_flush(blkdev->bs);
 
@@ -364,6 +364,9 @@  static int ioreq_runio_qemu_sync(struct ioreq *ioreq)
     return 0;
 
 err:
+    ioreq_unmap(ioreq);
+err_no_map:
+    ioreq_finish(ioreq);
     ioreq->status = BLKIF_RSP_ERROR;
     return -1;
 }
@@ -393,7 +396,7 @@  static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
     struct XenBlkDev *blkdev = ioreq->blkdev;
 
     if (ioreq->req.nr_segments && ioreq_map(ioreq) == -1)
-	goto err;
+	goto err_no_map;
 
     ioreq->aio_inflight++;
     if (ioreq->presync)
@@ -427,6 +430,9 @@  static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
     return 0;
 
 err:
+    ioreq_unmap(ioreq);
+err_no_map:
+    ioreq_finish(ioreq);
     ioreq->status = BLKIF_RSP_ERROR;
     return -1;
 }