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From:   Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
To:     dchickles@marvell.com, sburla@marvell.com, fmanlunas@marvell.com,
        davem@davemloft.net, kuba@kernel.org, ricardo.farrington@cavium.com
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        tianjia.zhang@alibaba.com
Subject: [PATCH] liquidio: Fix wrong return value in cn23xx_get_pf_num()
Date:   Sun,  2 Aug 2020 19:15:44 +0800
Message-Id: <20200802111544.5520-1-tianjia.zhang@linux.alibaba.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On an error exit path, a negative error code should be returned
instead of a positive return value.

Fixes: 0c45d7fe12c7e ("liquidio: fix use of pf in pass-through mode in a virtual machine")
Cc: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
---
 drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c b/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
index 43d11c38b38a..4cddd628d41b 100644
--- a/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
+++ b/drivers/net/ethernet/cavium/liquidio/cn23xx_pf_device.c
@@ -1167,7 +1167,7 @@ static int cn23xx_get_pf_num(struct octeon_device *oct)
 		oct->pf_num = ((fdl_bit >> CN23XX_PCIE_SRIOV_FDL_BIT_POS) &
 			       CN23XX_PCIE_SRIOV_FDL_MASK);
 	} else {
-		ret = EINVAL;
+		ret = -EINVAL;
 
 		/* Under some virtual environments, extended PCI regs are
 		 * inaccessible, in which case the above read will have failed.
-- 
2.26.2