From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: linux-kernel@vger.kernel.org
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-mtd@lists.infradead.org, Joe Perches <joe@perches.com>,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH v2 1/3] mtd: lpddr: Fix bad logic in print_drs_error
Date: Mon, 27 Apr 2020 14:50:37 -0500 [thread overview]
Message-ID: <3fb0e29f5b601db8be2938a01d974b00c8788501.1588016644.git.gustavo@embeddedor.com> (raw)
In-Reply-To: <cover.1588016644.git.gustavo@embeddedor.com>
Update logic for broken test. Use a more common logging style.
It appears the logic in this function is broken for the
consecutive tests of
if (prog_status & 0x3)
...
else if (prog_status & 0x2)
...
else (prog_status & 0x1)
...
Likely the first test should be
if ((prog_status & 0x3) == 0x3)
Found by inspection of include files using printk.
Fixes: eb3db27507f7 ("[MTD] LPDDR PFOW definition")
Cc: stable@vger.kernel.org
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
Changes in v2:
- None.
include/linux/mtd/pfow.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/mtd/pfow.h b/include/linux/mtd/pfow.h
index 122f3439e1af..c65d7a3be3c6 100644
--- a/include/linux/mtd/pfow.h
+++ b/include/linux/mtd/pfow.h
@@ -128,7 +128,7 @@ static inline void print_drs_error(unsigned dsr)
if (!(dsr & DSR_AVAILABLE))
printk(KERN_NOTICE"DSR.15: (0) Device not Available\n");
- if (prog_status & 0x03)
+ if ((prog_status & 0x03) == 0x03)
printk(KERN_NOTICE"DSR.9,8: (11) Attempt to program invalid "
"half with 41h command\n");
else if (prog_status & 0x02)
--
2.26.0
next prev parent reply other threads:[~2020-04-27 20:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-27 19:48 [PATCH v2 0/3] mtd: lpddr: Fix bad logic bug in print_drs_error Gustavo A. R. Silva
2020-04-27 19:50 ` Gustavo A. R. Silva [this message]
2020-04-27 20:08 ` [PATCH v2 1/3] mtd: lpddr: Fix bad logic " Miquel Raynal
2020-05-19 16:22 ` Gustavo A. R. Silva
2020-09-07 7:34 ` Miquel Raynal
2020-04-27 19:54 ` [PATCH v2 2/3] mtd: lpddr: Replace printk with pr_notice Gustavo A. R. Silva
2020-04-27 20:09 ` Miquel Raynal
2020-09-07 7:34 ` Miquel Raynal
2020-04-27 19:56 ` [PATCH v2 3/3] mtd: lpddr: Move function print_drs_error to lpddr_cmds.c Gustavo A. R. Silva
2020-04-27 20:09 ` Miquel Raynal
2020-09-07 7:34 ` Miquel Raynal
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3fb0e29f5b601db8be2938a01d974b00c8788501.1588016644.git.gustavo@embeddedor.com \
--to=gustavo@embeddedor.com \
--cc=joe@perches.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=miquel.raynal@bootlin.com \
--cc=richard@nod.at \
--cc=vigneshr@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).