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Subject[PATCH 5.4 238/408] mtd: rawnand: vf610: disable clk on error handling path in probe
Date
From: Evgeny Novikov <novikov@ispras.ru>

[ Upstream commit cb7dc3178a9862614b1e7567d77f4679f027a074 ]

vf610_nfc_probe() does not invoke clk_disable_unprepare() on one error
handling path. The patch fixes that.

Found by Linux Driver Verification project (linuxtesting.org).

Fixes: 6f0ce4dfc5a3 ("mtd: rawnand: vf610: Avoid a potential NULL pointer dereference")
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200806072634.23528-1-novikov@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/mtd/nand/raw/vf610_nfc.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c
index 6b399a75f9aec..b6f114da57143 100644
--- a/drivers/mtd/nand/raw/vf610_nfc.c
+++ b/drivers/mtd/nand/raw/vf610_nfc.c
@@ -850,8 +850,10 @@ static int vf610_nfc_probe(struct platform_device *pdev)
}

of_id = of_match_device(vf610_nfc_dt_ids, &pdev->dev);
- if (!of_id)
- return -ENODEV;
+ if (!of_id) {
+ err = -ENODEV;
+ goto err_disable_clk;
+ }

nfc->variant = (enum vf610_nfc_variant)of_id->data;

--
2.25.1


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