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mtd: rawnand: protect access to rawnand devices while in suspend
commit 8cba323 upstream. Prevent rawnand access while in a suspended state. Commit 013e629 ("mtd: rawnand: Simplify the locking") allows the rawnand layer to return errors rather than waiting in a blocking wait. Tested on a iMX6ULL. Fixes: 013e629 ("mtd: rawnand: Simplify the locking") Signed-off-by: Sean Nyekjaer <sean@geanix.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20220208085213.1838273-1-sean@geanix.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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