mtd: rawnand: cadence: reinit completion before executing a new command

commit 0d7d6c8183aadb1dcc13f415941404a7913b46b3 upstream.

Reing the completion object before executing CDMA command to make sure
the 'done' flag is OK.

Fixes: ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem")
Cc: stable@vger.kernel.org
Signed-off-by: Piotr Sroka <piotrs@cadence.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1581328530-29966-4-git-send-email-piotrs@cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/mtd/nand/raw/cadence-nand-controller.c b/drivers/mtd/nand/raw/cadence-nand-controller.c
index ea5c90974dce6be65d03f254059eaa72f8ef62c6..664a8db1ecd7a734edeb8cb72266ee85f6254700 100644 (file)
--- a/drivers/mtd/nand/raw/cadence-nand-controller.c
+++ b/drivers/mtd/nand/raw/cadence-nand-controller.c
@@ -997,6 +997,7 @@ static int cadence_nand_cdma_send(struct cdns_nand_ctrl *cdns_ctrl,
                return status;
 
        cadence_nand_reset_irq(cdns_ctrl);
+       reinit_completion(&cdns_ctrl->complete);
 
        writel_relaxed((u32)cdns_ctrl->dma_cdma_desc,
                       cdns_ctrl->reg + CMD_REG2);