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authorSeongJae Park <sjpark@amazon.de>2020-12-14 10:04:18 +0100
committerJuergen Gross <jgross@suse.com>2020-12-14 10:04:18 +0100
commit2e85d32b1c865bec703ce0c962221a5e955c52c2 (patch)
tree9d0cce59ed6d8225cf99404797fea942270a061c /drivers/xen/xenbus/xenbus_probe.c
parentxen/xenbus: Allow watches discard events before queueing (diff)
downloadlinux-2e85d32b1c865bec703ce0c962221a5e955c52c2.tar.xz
linux-2e85d32b1c865bec703ce0c962221a5e955c52c2.zip
xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()
Some code does not directly make 'xenbus_watch' object and call 'register_xenbus_watch()' but use 'xenbus_watch_path()' instead. This commit adds support of 'will_handle' callback in the 'xenbus_watch_path()' and it's wrapper, 'xenbus_watch_pathfmt()'. This is part of XSA-349 Cc: stable@vger.kernel.org Signed-off-by: SeongJae Park <sjpark@amazon.de> Reported-by: Michael Kurth <mku@amazon.de> Reported-by: Pawel Wieczorkiewicz <wipawel@amazon.de> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.c')
-rw-r--r--drivers/xen/xenbus/xenbus_probe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 38725d97d909..4c3d1b84aa0a 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -136,7 +136,7 @@ static int watch_otherend(struct xenbus_device *dev)
container_of(dev->dev.bus, struct xen_bus_type, bus);
return xenbus_watch_pathfmt(dev, &dev->otherend_watch,
- bus->otherend_changed,
+ NULL, bus->otherend_changed,
"%s/%s", dev->otherend, "state");
}