[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] xen-pciback: fix up cleanup path when alloc fails
When allocating a pciback device fails, avoid the possibility of a use after free. Reported-by: Jonathan Creekmore <jonathan.creekmore@xxxxxxxxx> Signed-off-by: Doug Goldstein <cardoe@xxxxxxxxxx> --- drivers/xen/xen-pciback/xenbus.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c index 98bc345..4843741 100644 --- a/drivers/xen/xen-pciback/xenbus.c +++ b/drivers/xen/xen-pciback/xenbus.c @@ -44,7 +44,6 @@ static struct xen_pcibk_device *alloc_pdev(struct xenbus_device *xdev) dev_dbg(&xdev->dev, "allocated pdev @ 0x%p\n", pdev); pdev->xdev = xdev; - dev_set_drvdata(&xdev->dev, pdev); mutex_init(&pdev->dev_lock); @@ -58,6 +57,9 @@ static struct xen_pcibk_device *alloc_pdev(struct xenbus_device *xdev) kfree(pdev); pdev = NULL; } + + dev_set_drvdata(&xdev->dev, pdev); + out: return pdev; } -- 2.4.10 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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