Xen devel - Sep 2009 - [PATCH] blktap2: Fix off-by-one error in driver lookup

# HG changeset patch
# User Brendan Cully <brendan@cs.ubc.ca>
# Date 1252699253 25200
# Node ID 92b42ec8a5677679e5841033544bf82606c3cfd3
# Parent  d2a32e24fe504b9626e6732b4f213c7cb1bc8b57
blktap2: Fix off-by-one error in driver lookup

diff --git a/tools/blktap2/drivers/tapdisk-server.c
b/tools/blktap2/drivers/tapdisk-server.c
--- a/tools/blktap2/drivers/tapdisk-server.c
+++ b/tools/blktap2/drivers/tapdisk-server.c
@@ -53,7 +53,7 @@
 	int n;
 
 	n = sizeof(dtypes) / sizeof(struct disk_info_t *);
-	if (type > n)
+	if (type >= n)
 		return NULL;
 
 	return dtypes[type]->drv;

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