linux-kernel - [PATCH] scsi: fusion: Fix not used variable 'rc'

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Message-ID: <20241024084417.154655-1-zengheng4@huawei.com>
Date: Thu, 24 Oct 2024 16:44:17 +0800
From: Zeng Heng <zengheng4@...wei.com>
To: <sreekanth.reddy@...adcom.com>, <sathya.prakash@...adcom.com>,
	<James.Bottomley@...elEye.com>, <eric.moore@...l.com>,
	<suganath-prabu.subramani@...adcom.com>
CC: <bobo.shaobowang@...wei.com>, <linux-scsi@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <MPT-FusionLinux.pdl@...adcom.com>
Subject: [PATCH] scsi: fusion: Fix not used variable 'rc'

Fixing exposed the fact that improperly ignore the return value of
scsi_device_reprobe() in _scsih_reprobe_lun(). Fixing the calling code to
deal with the potential error is non-trivial, so for now just WARN_ON().

The handling of scsi_device_reprobe()'s return value refers to
_scsih_reprobe_lun() and the following link:
https://lore.kernel.org/all/094fdbf57487af4f395238c0525b2a560c8f68f0.1469766027.git.calvinowens@fb.com/

Fixes: f99be43b3024 ("[SCSI] fusion: power pc and miscellaneous bug fixs")
Signed-off-by: Zeng Heng <zengheng4@...wei.com>
---
 drivers/message/fusion/mptsas.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index a0bcb0864ecd..a798e26c6402 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -4231,10 +4231,8 @@ mptsas_find_phyinfo_by_phys_disk_num(MPT_ADAPTER *ioc, u8 phys_disk_num,
 static void
 mptsas_reprobe_lun(struct scsi_device *sdev, void *data)
 {
-	int rc;
-
 	sdev->no_uld_attach = data ? 1 : 0;
-	rc = scsi_device_reprobe(sdev);
+	WARN_ON(scsi_device_reprobe(sdev));
 }
 
 static void
-- 
2.25.1