6.6-stable review patch. If anyone has any objections, please let me know.
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From: Miquel Raynal miquel.raynal@bootlin.com
[ Upstream commit 2073ae37d550ea32e8545edaa94ef10b4fef7235 ]
Reviewing a series converting the for_each_chil_of_node() loops into their _scoped variants made me realize there was no cleanup of the already registered NAND devices upon error which may leak memory on systems with more than a chip when this error occurs. We should call the _nand_chips_cleanup() function when this happens.
Fixes: 1d6b1e464950 ("mtd: mediatek: driver for MTK Smart Device") Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Reviewed-by: Pratyush Yadav pratyush@kernel.org Reviewed-by: Matthias Brugger matthias.bgg@kernel.org Link: https://lore.kernel.org/linux-mtd/20240826153019.67106-2-miquel.raynal@bootl... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/mtd/nand/raw/mtk_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/mtk_nand.c b/drivers/mtd/nand/raw/mtk_nand.c index 3fb32a59fdf61..161a409ca4ed2 100644 --- a/drivers/mtd/nand/raw/mtk_nand.c +++ b/drivers/mtd/nand/raw/mtk_nand.c @@ -1453,8 +1453,10 @@ static int mtk_nfc_nand_chips_init(struct device *dev, struct mtk_nfc *nfc)
for_each_child_of_node_scoped(np, nand_np) { ret = mtk_nfc_nand_chip_init(dev, nfc, nand_np); - if (ret) + if (ret) { + mtk_nfc_nand_chips_cleanup(nfc); return ret; + } }
return 0;