From: Evgeny Novikov <novikov@xxxxxxxxx>
[ 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@xxxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20200806072634.23528-1-novikov@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 7248c59011836..fcca45e2abe20 100644
--- a/drivers/mtd/nand/raw/vf610_nfc.c
+++ b/drivers/mtd/nand/raw/vf610_nfc.c
@@ -852,8 +852,10 @@ 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
