[Xen-devel] [PATCH] Linux: Fwd: blkfront: Fix an unlikely xenbus crasher

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

Getting partition 0 should not fail, but if it does we won't continue.

Signed-off-by: Daniel Stodden <daniel.stodden@xxxxxxxxxx>
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

--- a/drivers/xen/blkfront/blkfront.c
+++ b/drivers/xen/blkfront/blkfront.c
@@ -285,8 +285,10 @@
 
        case XenbusStateClosing:
                bd = bdget(info->dev);
-               if (bd == NULL)
+               if (bd == NULL) {
                        xenbus_dev_fatal(dev, -ENODEV, "bdget failed");
+                       break;
+               }
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
                down(&bd->bd_sem);

Attachment: blkfront-xenbus-oops.patch
Description: Text document

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