[PATCH 5.7 134/244] mtd: rawnand: marvell: Fix the condition on a return code

[Greg Kroah-Hartman]

From: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>

commit c27075772d1f1c8aaf276db9943b35adda8a8b65 upstream.

In a previous fix, I changed the condition on which the timeout of an
IRQ is reached from:

    if (!ret)

into:

    if (ret && !pending)

While having a non-zero return code is usual in the Linux kernel, here
ret comes from a wait_for_completion_timeout() which returns 0 when
the waiting period is too long.

Hence, the revised condition should be:

    if (!ret && !pending)

The faulty patch did not produce any error because of the !pending
condition so this change is finally purely cosmetic and does not
change the actual driver behavior.

Fixes: cafb56dd741e ("mtd: rawnand: marvell: prevent timeouts on a loaded machine")
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Reviewed-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/20200424164501.26719-2-miquel.raynal@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/mtd/nand/raw/marvell_nand.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/mtd/nand/raw/marvell_nand.c
+++ b/drivers/mtd/nand/raw/marvell_nand.c
@@ -707,7 +707,7 @@ static int marvell_nfc_wait_op(struct na
 	 * In case the interrupt was not served in the required time frame,
 	 * check if the ISR was not served or if something went actually wrong.
 	 */
-	if (ret && !pending) {
+	if (!ret && !pending) {
 		dev_err(nfc->dev, "Timeout waiting for RB signal\n");
 		return -ETIMEDOUT;
 	}