mtd: rawnand: stm32_fmc2: fix ECC overwrite

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commit 811c0da454 upstream.

In case OOB write is requested during a data write, ECC is currently
lost. Avoid this issue by only writing in the free spare area.
This issue has been seen with a YAFFS2 file system.

Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Cc: stable@vger.kernel.org
Fixes: 2cd457f328 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Christophe Kerello 2025-08-12 09:30:08 +02:00 • committed by Greg Kroah-Hartman

parent 75686c4957

commit e9874dc405

1 changed files with 15 additions and 3 deletions

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drivers/mtd/nand/raw/stm32_fmc2_nand.c

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