linux-kernel - [PATCH v2] scsi: fdomain: Fix error return code in fdomain

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Date:   Thu, 15 Jul 2021 11:26:25 +0800
From:   Wei Li <liwei391@...wei.com>
To:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Ondrej Zary <linux@...y.sk>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <huawei.libin@...wei.com>
Subject: [PATCH v2] scsi: fdomain: Fix error return code in fdomain_probe()

When it fail to request_region, it just jump to 'fail_disable',
while the 'ret' is not updated. So assign the return code before
that.

Fixes: 8674a8aa2c39 ("scsi: fdomain: Add PCMCIA support")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Li <liwei391@...wei.com>
---
 drivers/scsi/pcmcia/fdomain_cs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pcmcia/fdomain_cs.c b/drivers/scsi/pcmcia/fdomain_cs.c
index e42acf314d06..33df6a9ba9b5 100644
--- a/drivers/scsi/pcmcia/fdomain_cs.c
+++ b/drivers/scsi/pcmcia/fdomain_cs.c
@@ -45,8 +45,10 @@ static int fdomain_probe(struct pcmcia_device *link)
 		goto fail_disable;
 
 	if (!request_region(link->resource[0]->start, FDOMAIN_REGION_SIZE,
-			    "fdomain_cs"))
+			    "fdomain_cs")) {
+		ret = -EBUSY;
 		goto fail_disable;
+	}
 
 	sh = fdomain_create(link->resource[0]->start, link->irq, 7, &link->dev);
 	if (!sh) {
-- 
2.25.1