[PATCH 5.14 112/432] scsi: fdomain: Fix error return code in fdomain_probe()

Greg Kroah-Hartman
2021-09-16T17:19:55Z

From: Wei Li <liwei391@huawei.com>

[ Upstream commit 632c4ae6da1d629eddf9da1e692d7617c568c256 ]

If request_region() fails the return value is not set. Return -EBUSY on
error.

Link: https://lore.kernel.org/r/20210715032625.1395495-1-liwei391@huawei.com
Fixes: 8674a8aa2c39 ("scsi: fdomain: Add PCMCIA support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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) {
--
2.30.2