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Message-Id: <20210524152328.403765715@linuxfoundation.org>
Date: Mon, 24 May 2021 17:26:06 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Avri Altman <avri.altman@....com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Phillip Potter <phil@...lpotter.co.uk>
Subject: [PATCH 5.4 60/71] scsi: ufs: handle cleanup correctly on devm_reset_control_get error
From: Phillip Potter <phil@...lpotter.co.uk>
commit 2f4a784f40f8d337d6590e2e93f46429052e15ac upstream.
Move ufshcd_set_variant call in ufs_hisi_init_common to common error
section at end of the function, and then jump to this from the error
checking statements for both devm_reset_control_get and
ufs_hisi_get_resource. This fixes the original commit (63a06181d7ce)
which was reverted due to the University of Minnesota problems.
Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Avri Altman <avri.altman@....com>
Cc: Martin K. Petersen <martin.petersen@...cle.com>
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Phillip Potter <phil@...lpotter.co.uk>
Link: https://lore.kernel.org/r/20210503115736.2104747-32-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/scsi/ufs/ufs-hisi.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
--- a/drivers/scsi/ufs/ufs-hisi.c
+++ b/drivers/scsi/ufs/ufs-hisi.c
@@ -481,17 +481,24 @@ static int ufs_hisi_init_common(struct u
host->hba = hba;
ufshcd_set_variant(hba, host);
- host->rst = devm_reset_control_get(dev, "rst");
+ host->rst = devm_reset_control_get(dev, "rst");
+ if (IS_ERR(host->rst)) {
+ dev_err(dev, "%s: failed to get reset control\n", __func__);
+ err = PTR_ERR(host->rst);
+ goto error;
+ }
ufs_hisi_set_pm_lvl(hba);
err = ufs_hisi_get_resource(host);
- if (err) {
- ufshcd_set_variant(hba, NULL);
- return err;
- }
+ if (err)
+ goto error;
return 0;
+
+error:
+ ufshcd_set_variant(hba, NULL);
+ return err;
}
static int ufs_hi3660_init(struct ufs_hba *hba)
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