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scsi-generic: do not use a stale aiocb

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If a request is canceled after it has been completed, scsi_cancel_io
would pass a stale aiocb to bdrv_aio_cancel.  Avoid this.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Paolo Bonzini 2011-05-25 16:53:46 +02:00
parent cfdc1bb06e
commit d33e0ce213
1 changed files with 3 additions and 0 deletions
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3
hw/scsi-generic.c
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@ -91,6 +91,7 @@ static void scsi_command_complete(void *opaque, int ret)
SCSIGenericReq *r = (SCSIGenericReq *)opaque;
SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, r->req.dev);
r->req.aiocb = NULL;
s->driver_status = r->io_header.driver_status;
if (s->driver_status & SG_ERR_DRIVER_SENSE)
s->senselen = r->io_header.sb_len_wr;
@ -163,6 +164,7 @@ static void scsi_read_complete(void * opaque, int ret)
SCSIGenericReq *r = (SCSIGenericReq *)opaque;
int len;
r->req.aiocb = NULL;
if (ret) {
DPRINTF("IO error ret %d\n", ret);
scsi_command_complete(r, ret);
@ -229,6 +231,7 @@ static void scsi_write_complete(void * opaque, int ret)
SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, r->req.dev);
DPRINTF("scsi_write_complete() ret = %d\n", ret);
r->req.aiocb = NULL;
if (ret) {
DPRINTF("IO error\n");
scsi_command_complete(r, ret);