mtd: rawnand: meson: fix unaligned DMA buffers handling

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commit 98480a181a upstream.

Meson NAND controller requires 8 bytes alignment for DMA addresses,
otherwise it "aligns" passed address by itself thus accessing invalid
location in the provided buffer. This patch makes unaligned buffers to
be reallocated to become valid.

Fixes: 8fae856c53 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230615080815.3291006-1-AVKrasnov@sberdevices.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Arseniy Krasnov 2023-06-15 11:08:15 +03:00 • committed by Greg Kroah-Hartman

parent bb4e824d6b

commit de67dadd5c

1 changed files with 4 additions and 0 deletions

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drivers/mtd/nand/raw/meson_nand.c

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