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From: Christian Eggers <ceggers@arri.de>
To: Han Xu <han.xu@nxp.com>, Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Stefan Riedmueller <s.riedmueller@phytec.de>,
	<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
	Pavel Machek <pavel@denx.de>, Christian Eggers <ceggers@arri.de>,
	<stable@vger.kernel.org>
Subject: [PATCH] mtd: rawnand: gpmi: don't leak PM reference in error path
Date: Tue, 25 Jan 2022 09:16:19 +0100	[thread overview]
Message-ID: <20220125081619.6286-1-ceggers@arri.de> (raw)

If gpmi_nfc_apply_timings() fails, the PM runtime usage counter must be
dropped.

Reported-by: Pavel Machek <pavel@denx.de>
Fixes: f53d4c109a66 ("mtd: rawnand: gpmi: Add ERR007117 protection for nfc_apply_timings")
Signed-off-by: Christian Eggers <ceggers@arri.de>
Cc: stable@vger.kernel.org
---
 drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 1b64c5a5140d..ded4df473928 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2285,7 +2285,7 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
 		this->hw.must_apply_timings = false;
 		ret = gpmi_nfc_apply_timings(this);
 		if (ret)
-			return ret;
+			goto out_pm;
 	}
 
 	dev_dbg(this->dev, "%s: %d instructions\n", __func__, op->ninstrs);
@@ -2414,6 +2414,7 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
 
 	this->bch = false;
 
+out_pm:
 	pm_runtime_mark_last_busy(this->dev);
 	pm_runtime_put_autosuspend(this->dev);
 
-- 
Christian Eggers
Embedded software developer

Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRA 57918
Persoenlich haftender Gesellschafter: Arnold & Richter Cine Technik GmbH
Sitz: Muenchen - Registergericht: Amtsgericht Muenchen - Handelsregisternummer: HRB 54477
Geschaeftsfuehrer: Dr. Michael Neuhaeuser; Stephan Schenk; Walter Trauninger; Markus Zeiler


             reply	other threads:[~2022-01-25  8:19 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25  8:16 Christian Eggers [this message]
2022-01-26 10:52 ` Miquel Raynal

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