linux-kernel - [PATCH 5.4 17/48] RDMA/efa: Free IRQ vectors on error flow

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Message-Id: <20210901122253.970935072@linuxfoundation.org>
Date:   Wed,  1 Sep 2021 14:28:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Firas JahJah <firasj@...zon.com>,
        Yossi Leybovich <sleybo@...zon.com>,
        Gal Pressman <galpress@...zon.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 17/48] RDMA/efa: Free IRQ vectors on error flow

From: Gal Pressman <galpress@...zon.com>

[ Upstream commit dbe986bdfd6dfe6ef24b833767fff4151e024357 ]

Make sure to free the IRQ vectors in case the allocation doesn't return
the expected number of IRQs.

Fixes: b7f5e880f377 ("RDMA/efa: Add the efa module")
Link: https://lore.kernel.org/r/20210811151131.39138-2-galpress@amazon.com
Reviewed-by: Firas JahJah <firasj@...zon.com>
Reviewed-by: Yossi Leybovich <sleybo@...zon.com>
Signed-off-by: Gal Pressman <galpress@...zon.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/hw/efa/efa_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/efa/efa_main.c b/drivers/infiniband/hw/efa/efa_main.c
index 83858f7e83d0..75dfe9d1564c 100644
--- a/drivers/infiniband/hw/efa/efa_main.c
+++ b/drivers/infiniband/hw/efa/efa_main.c
@@ -340,6 +340,7 @@ static int efa_enable_msix(struct efa_dev *dev)
 	}
 
 	if (irq_num != msix_vecs) {
+		efa_disable_msix(dev);
 		dev_err(&dev->pdev->dev,
 			"Allocated %d MSI-X (out of %d requested)\n",
 			irq_num, msix_vecs);
-- 
2.30.2