[RFC PATCH] return -EINVAL when trying to kick/kill a nonexistent domain watchdog

[RFC PATCH] return -EINVAL when trying to kick/kill a nonexistent domain watchdog

[Laszlo Ersek]

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... to be more in-line with the NR_DOMAIN_WATCHDOG_TIMERS check at the 
top of domain_watchdog(), and also to follow the timer_(delete|settime) 
POSIX API's EINVAL return value.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>

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diff -r 4b0907c6a08c xen/common/schedule.c
--- a/xen/common/schedule.c	Tue Oct 11 12:02:58 2011 +0100
+++ b/xen/common/schedule.c	Fri Oct 14 11:55:00 2011 +0200
@@ -763,7 +763,7 @@ static long domain_watchdog(struct domai
     if ( !test_bit(id, &d->watchdog_inuse_map) )
     {
         spin_unlock(&d->watchdog_lock);
-        return -EEXIST;
+        return -EINVAL;
     }
 
     if ( timeout == 0 )

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