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Message-Id: <20201027134903.263574305@linuxfoundation.org>
Date: Tue, 27 Oct 2020 14:49:27 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Mark Tomlinson <mark.tomlinson@...iedtelesis.co.nz>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 057/112] mtd: mtdoops: Dont write panic data twice
From: Mark Tomlinson <mark.tomlinson@...iedtelesis.co.nz>
[ Upstream commit c1cf1d57d1492235309111ea6a900940213a9166 ]
If calling mtdoops_write, don't also schedule work to be done later.
Although this appears to not be causing an issue, possibly because the
scheduled work will never get done, it is confusing.
Fixes: 016c1291ce70 ("mtd: mtdoops: do not use mtd->panic_write directly")
Signed-off-by: Mark Tomlinson <mark.tomlinson@...iedtelesis.co.nz>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Link: https://lore.kernel.org/linux-mtd/20200903034217.23079-1-mark.tomlinson@alliedtelesis.co.nz
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/mtd/mtdoops.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 97bb8f6304d4f..09165eaac7a15 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -313,12 +313,13 @@ static void mtdoops_do_dump(struct kmsg_dumper *dumper,
kmsg_dump_get_buffer(dumper, true, cxt->oops_buf + MTDOOPS_HEADER_SIZE,
record_size - MTDOOPS_HEADER_SIZE, NULL);
- /* Panics must be written immediately */
- if (reason != KMSG_DUMP_OOPS)
+ if (reason != KMSG_DUMP_OOPS) {
+ /* Panics must be written immediately */
mtdoops_write(cxt, 1);
-
- /* For other cases, schedule work to write it "nicely" */
- schedule_work(&cxt->work_write);
+ } else {
+ /* For other cases, schedule work to write it "nicely" */
+ schedule_work(&cxt->work_write);
+ }
}
static void mtdoops_notify_add(struct mtd_info *mtd)
--
2.25.1
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