From af04662b4d80de5797a595bc9855d09ef4fe55cc Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Mon, 22 Jun 2009 22:23:48 -0700
Subject: [PATCH] IB/ehca: Ensure that guid_entry index is not negative
This prevents the memcpy() of a guid_entries element using a negative index.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---
drivers/infiniband/hw/ehca/ehca_hca.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
index 9209c5332dfe8..8b92f85d4dd0e 100644
--- a/drivers/infiniband/hw/ehca/ehca_hca.c
+++ b/drivers/infiniband/hw/ehca/ehca_hca.c
@@ -319,7 +319,7 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port,
ib_device);
struct hipz_query_port *rblock;
- if (index > 255) {
+ if (index < 0 || index > 255) {
ehca_err(&shca->ib_device, "Invalid index: %x.", index);
return -EINVAL;
}
--
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