Messages in this thread Patch in this message | | | From | Konrad Rzeszutek Wilk <> | Subject | [PATCH 7/9] xen/xenbus: Check before dereferencing it. | Date | Thu, 29 Sep 2011 15:52:49 -0400 |
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. we do the check whether 'xdev' is NULL - but after we have dereferenced it.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> --- drivers/xen/xenbus/xenbus_probe_backend.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c index 60adf91..331589a 100644 --- a/drivers/xen/xenbus/xenbus_probe_backend.c +++ b/drivers/xen/xenbus/xenbus_probe_backend.c @@ -103,10 +103,11 @@ static int xenbus_uevent_backend(struct device *dev, return -ENODEV; xdev = to_xenbus_device(dev); - bus = container_of(xdev->dev.bus, struct xen_bus_type, bus); if (xdev == NULL) return -ENODEV; + bus = container_of(xdev->dev.bus, struct xen_bus_type, bus); + if (add_uevent_var(env, "MODALIAS=xen-backend:%s", xdev->devicetype)) return -ENOMEM; -- 1.7.4.1
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