netdev - [PATCH net 1/3] qed: Release CQ resource under lock on failure

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Message-ID: <1485292523-8821-2-git-send-email-Yuval.Mintz@cavium.com>
Date:   Tue, 24 Jan 2017 23:15:21 +0200
From:   Yuval Mintz <Yuval.Mintz@...ium.com>
To:     <davem@...emloft.net>, <netdev@...r.kernel.org>
CC:     <linux-rdma@...r.kernel.org>, <Ram.Amrani@...ium.com>,
        Yuval Mintz <Yuval.Mintz@...ium.com>
Subject: [PATCH net 1/3] qed: Release CQ resource under lock on failure

From: Ram Amrani <Ram.Amrani@...ium.com>

The CQ resource pool is protected by a spin lock. When a CQ creation
fails it now deallocates under that lock as well.

Signed-off-by: Ram Amrani <Ram.Amrani@...ium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@...ium.com>
---
 drivers/net/ethernet/qlogic/qed/qed_roce.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index bd4cad2..7ab6d4e 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -948,7 +948,9 @@ static int qed_rdma_create_cq(void *rdma_cxt,
 
 err:
 	/* release allocated icid */
+	spin_lock_bh(&p_info->lock);
 	qed_bmap_release_id(p_hwfn, &p_info->cq_map, returned_id);
+	spin_unlock_bh(&p_info->lock);
 	DP_NOTICE(p_hwfn, "Create CQ failed, rc = %d\n", rc);
 
 	return rc;
-- 
1.8.3.1