netdev - [PATCH] cavium: Return negative value when pci_alloc_irq

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Date:   Mon, 18 Oct 2021 02:16:22 +0000
From:   Zheyu Ma <zheyuma97@...il.com>
To:     sgoutham@...vell.com, davem@...emloft.net, kuba@...nel.org
Cc:     linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Zheyu Ma <zheyuma97@...il.com>
Subject: [PATCH] cavium: Return negative value when pci_alloc_irq_vectors() fails

During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.

Signed-off-by: Zheyu Ma <zheyuma97@...il.com>
---
 drivers/net/ethernet/cavium/thunder/nic_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index 691e1475d55e..0fbecd093fa1 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -1193,7 +1193,7 @@ static int nic_register_interrupts(struct nicpf *nic)
 		dev_err(&nic->pdev->dev,
 			"Request for #%d msix vectors failed, returned %d\n",
 			   nic->num_vec, ret);
-		return 1;
+		return ret;
 	}
 
 	/* Register mailbox interrupt handler */
-- 
2.17.6