[Xen-changelog] [xen master] passthrough: fix a BUG_ON issue

[patchbot@xxxxxxx]

commit f164d498810560322c9f3a3f801eace6ebc6c9e1
Author:     Feng Wu <feng.wu@xxxxxxxxx>
AuthorDate: Wed Aug 31 18:13:47 2016 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Aug 31 18:13:47 2016 +0200

    passthrough: fix a BUG_ON issue
    
    The 'idx' can equal to the max number of vCPUs, fix it.
    
    Signed-off-by: Feng Wu <feng.wu@xxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/drivers/passthrough/io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/drivers/passthrough/io.c b/xen/drivers/passthrough/io.c
index 9e6b46c..66577b6 100644
--- a/xen/drivers/passthrough/io.c
+++ b/xen/drivers/passthrough/io.c
@@ -243,7 +243,7 @@ static struct vcpu *vector_hashing_dest(const struct domain 
*d,
         for ( i = 0; i <= mod; i++ )
         {
             idx = find_next_bit(dest_vcpu_bitmap, d->max_vcpus, idx) + 1;
-            BUG_ON(idx >= d->max_vcpus);
+            BUG_ON(idx > d->max_vcpus);
         }
 
         dest = d->vcpu[idx - 1];
--
generated by git-patchbot for /home/xen/git/xen.git#master

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