linux-kernel - [PATCH 4.19 120/264] scsi: target: tcmu: Fix warning: page may be used uninitialized

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Message-Id: <20201027135436.326454473@linuxfoundation.org>
Date:   Tue, 27 Oct 2020 14:52:58 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Mike Christie <michael.christie@...cle.com>,
        John Donnelly <john.p.donnelly@...cle.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 120/264] scsi: target: tcmu: Fix warning: page may be used uninitialized

From: John Donnelly <john.p.donnelly@...cle.com>

[ Upstream commit 61741d8699e1fc764a309ebd20211bb1cb193110 ]

Corrects drivers/target/target_core_user.c:688:6: warning: 'page' may be
used uninitialized.

Link: https://lore.kernel.org/r/20200924001920.43594-1-john.p.donnelly@oracle.com
Fixes: 3c58f737231e ("scsi: target: tcmu: Optimize use of flush_dcache_page")
Cc: Mike Christie <michael.christie@...cle.com>
Acked-by: Mike Christie <michael.christie@...cle.com>
Signed-off-by: John Donnelly <john.p.donnelly@...cle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/target/target_core_user.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 99314e5162447..0219b5a865bee 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -680,7 +680,7 @@ static void scatter_data_area(struct tcmu_dev *udev,
 	void *from, *to = NULL;
 	size_t copy_bytes, to_offset, offset;
 	struct scatterlist *sg;
-	struct page *page;
+	struct page *page = NULL;
 
 	for_each_sg(data_sg, sg, data_nents, i) {
 		int sg_remaining = sg->length;
-- 
2.25.1