netdev - [net-next PATCH 3/5] be2net: reset queue address after freeing

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Message-ID: <1330059017-5976-4-git-send-email-sathya.perla@emulex.com>
Date:	Fri, 24 Feb 2012 10:20:15 +0530
From:	Sathya Perla <sathya.perla@...lex.com>
To:	<netdev@...r.kernel.org>
Subject: [net-next PATCH 3/5] be2net: reset queue address after freeing

This will prevent double free in some cases where be_clear() is called
for cleanup when be_setup() fails half-way.

Signed-off-by: Sathya Perla <sathya.perla@...lex.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 36ad9a7..e382278 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -127,9 +127,11 @@ static inline bool be_is_mc(struct be_adapter *adapter) {
 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
 {
 	struct be_dma_mem *mem = &q->dma_mem;
-	if (mem->va)
+	if (mem->va) {
 		dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
 				  mem->dma);
+		mem->va = NULL;
+	}
 }
 
 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
@@ -1660,7 +1662,7 @@ static int be_evt_queues_create(struct be_adapter *adapter)
 		if (rc)
 			return rc;
 	}
-	return rc;
+	return 0;
 }
 
 static void be_mcc_queues_destroy(struct be_adapter *adapter)
-- 
1.7.4

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