This is a note to let you know that I've just added the patch titled
mtd: nand: mxic-ecc: Fix mxic_ecc_data_xfer_wait_for_completion() when irq is used
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-nand-mxic-ecc-fix-mxic_ecc_data_xfer_wait_for_co.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e441ee2a4f0bb1e693950104905178427474d63b
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Wed Feb 15 12:08:45 2023 +0100
mtd: nand: mxic-ecc: Fix mxic_ecc_data_xfer_wait_for_completion() when irq is used
[ Upstream commit 75dce6a941e3f16c3b4878c8b2f46d5d07c619ce ]
wait_for_completion_timeout() and readl_poll_timeout() don't handle their
return value the same way.
wait_for_completion_timeout() returns 0 on time out (and >0 in all other
cases)
readl_poll_timeout() returns 0 on success and -ETIMEDOUT upon a timeout.
In order for the error handling path to work in both cases, the logic
against wait_for_completion_timeout() needs to be inverted.
Fixes: 48e6633a9fa2 ("mtd: nand: mxic-ecc: Add Macronix external ECC engine support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Link: https://lore.kernel.org/linux-mtd/beddbc374557e44ceec897e68c4a5d12764ddbb9.1676459308.git.christophe.jaillet@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mtd/nand/ecc-mxic.c b/drivers/mtd/nand/ecc-mxic.c
index 8afdca731b874..6b487ffe2f2dc 100644
--- a/drivers/mtd/nand/ecc-mxic.c
+++ b/drivers/mtd/nand/ecc-mxic.c
@@ -429,6 +429,7 @@ static int mxic_ecc_data_xfer_wait_for_completion(struct mxic_ecc_engine *mxic)
mxic_ecc_enable_int(mxic);
ret = wait_for_completion_timeout(&mxic->complete,
msecs_to_jiffies(1000));
+ ret = ret ? 0 : -ETIMEDOUT;
mxic_ecc_disable_int(mxic);
} else {
ret = readl_poll_timeout(mxic->regs + INTRPT_STS, val,
