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From: Yang Yingliang <yangyingliang@huawei.com>
Date: Tue, 25 Jul 2023 20:28:09 +0800
Subject: [PATCH] ata: pata_octeon_cf: fix error return code in
Git-commit: 1cfe2d28e4d50a4e3e49344ade3b28f8dc26f891
Patch-mainline: v6.5-rc4
References: bsc#1216435
 octeon_cf_probe()

The variable 'rv' is set to 0 after calling of_property_read_reg(), so
it cannot be used as an error code. Change to using correct error codes
in the error path.

Fixes: d0b2461678b1 ("ata: Use of_property_read_reg() to parse "reg"")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 drivers/ata/pata_octeon_cf.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index ff538b858928..2884acfc4863 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -815,8 +815,8 @@ static int octeon_cf_probe(struct platform_device *pdev)
 	irq_handler_t irq_handler = NULL;
 	void __iomem *base;
 	struct octeon_cf_port *cf_port;
-	int rv = -ENOMEM;
 	u32 bus_width;
+	int rv;
 
 	node = pdev->dev.of_node;
 	if (node == NULL)
@@ -893,12 +893,12 @@ static int octeon_cf_probe(struct platform_device *pdev)
 	cs0 = devm_ioremap(&pdev->dev, res_cs0->start,
 				   resource_size(res_cs0));
 	if (!cs0)
-		return rv;
+		return -ENOMEM;
 
 	/* allocate host */
 	host = ata_host_alloc(&pdev->dev, 1);
 	if (!host)
-		return rv;
+		return -ENOMEM;
 
 	ap = host->ports[0];
 	ap->private_data = cf_port;
-- 
2.35.3