linux-kernel - [PATCH 118/190] Revert "scsi: ufs: fix a missing check of devm_reset_control

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Message-Id: <20210421130105.1226686-119-gregkh@linuxfoundation.org>
Date:   Wed, 21 Apr 2021 14:59:53 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kangjie Lu <kjlu@....edu>, Avri Altman <avri.altman@....com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 118/190] Revert "scsi: ufs: fix a missing check of devm_reset_control_get"

This reverts commit 63a06181d7ce169d09843645c50fea1901bc9f0a.

Commits from @umn.edu addresses have been found to be submitted in "bad
faith" to try to test the kernel community's ability to review "known
malicious" changes.  The result of these submissions can be found in a
paper published at the 42nd IEEE Symposium on Security and Privacy
entitled, "Open Source Insecurity: Stealthily Introducing
Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University
of Minnesota) and Kangjie Lu (University of Minnesota).

Because of this, all submissions from this group must be reverted from
the kernel tree and will need to be re-reviewed again to determine if
they actually are a valid fix.  Until that work is complete, remove this
change to ensure that no problems are being introduced into the
codebase.

Cc: Kangjie Lu <kjlu@....edu>
Cc: Avri Altman <avri.altman@....com>
Cc: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/scsi/ufs/ufs-hisi.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c
index 0aa58131e791..7d1e07a9d9dd 100644
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -468,10 +468,6 @@ static int ufs_hisi_init_common(struct ufs_hba *hba)
 	ufshcd_set_variant(hba, host);

 	host->rst  = devm_reset_control_get(dev, "rst");
-	if (IS_ERR(host->rst)) {
-		dev_err(dev, "%s: failed to get reset control\n", __func__);
-		return PTR_ERR(host->rst);
-	}

 	ufs_hisi_set_pm_lvl(hba);

-- 
2.31.1