Messages in this thread | | | Date | Sat, 6 Aug 2011 10:46:52 -0400 | From | Konrad Rzeszutek Wilk <> | Subject | Re: [patch] xen-blkback: add missing return on error in xen_update_blkif_status() |
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On Fri, Aug 05, 2011 at 05:18:21PM +0300, Dan Carpenter wrote: > We should return here after reporting the error. Otherwise we'd hit > a NULL deref of blkif->xenblkd on the next line.
Whao, yeah, I dropped that whole patchset. Will introduce it back in when I get a better patchset from Joe.
Joe, Can you add this fix in your patchqueue please?
> > Signed-off-by: Dan Carpenter <error27@gmail.com> > > diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c > index 32d4c3c..b750299 100644 > --- a/drivers/block/xen-blkback/xenbus.c > +++ b/drivers/block/xen-blkback/xenbus.c > @@ -107,6 +107,7 @@ static void xen_update_blkif_status(struct xen_blkif *blkif) > err = PTR_ERR(blkif->xenblkd); > blkif->xenblkd = NULL; > xenbus_dev_error(blkif->be->dev, err, "start xenblkd"); > + return; > } > > blkif->be->kthread_pid = blkif->xenblkd->pid;
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