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[Xen-devel] [PATCH] Talk_to_backend on xenbus_probe only if drv->probe w
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] [PATCH] Talk_to_backend on xenbus_probe only if drv->probe was sucessful |
| From: | Murillo Bernardes <mfb@xxxxxxxxxx> |
| Date: | Mon, 12 Dec 2005 16:35:45 -0200 |
| Delivery-date: | Mon, 12 Dec 2005 18:37:47 +0000 |
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| Organization: | IBM |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| User-agent: | KMail/1.8.2 |
Hi, This patch makes xenbus_probe only call talk_to_backend if drv->probe() was sucessful. There is no sense in add a watch before drv->probe, because if it fails the otherend_changed callback will be called and receive a struct with invalid pointers and we get a segfault (ooops). -- Murillo Fernandes Bernardes IBM Linux Technology Center
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