From: Thomas Klein <osstklei@de.ibm.com>
Date: Fri, 3 Nov 2006 16:47:20 +0000 (+0100)
Subject: [PATCH] ehea: Nullpointer dereferencation fix
X-Git-Tag: v2.6.19-rc5~10^2~4
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b5135d9b922fdcf46e1e7383167d93d42635fb4;p=linux-2.6

[PATCH] ehea: Nullpointer dereferencation fix

Fix: Must check for nullpointer before dereferencing it - not afterwards.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/net/ehea/ehea_qmr.c b/drivers/net/ehea/ehea_qmr.c
index 3e1862326c..161559315c 100644
--- a/drivers/net/ehea/ehea_qmr.c
+++ b/drivers/net/ehea/ehea_qmr.c
@@ -209,11 +209,11 @@ int ehea_destroy_cq(struct ehea_cq *cq)
 {
 	u64 adapter_handle, hret;
 
-	adapter_handle = cq->adapter->handle;
-
 	if (!cq)
 		return 0;
 
+	adapter_handle = cq->adapter->handle;
+
 	/* deregister all previous registered pages */
 	hret = ehea_h_free_resource(adapter_handle, cq->fw_handle);
 	if (hret != H_SUCCESS) {