From: Fengguang Wu <fengguang.wu@intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alan Cox <alan@linux.intel.com>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
Russ Gorby <russ.gorby@intel.com>
Subject: [PATCH] serial: ifx6x60: fix paging fault on spi_register_driver
Date: Tue, 7 Aug 2012 13:12:47 +0800 [thread overview]
Message-ID: <20120807051247.GA24140@localhost> (raw)
[ 117.240866] BUG: unable to handle kernel paging request at 815b627c
[ 117.240866] IP: [<813fe94b>] spi_register_driver+0xb/0x50
...
[ 117.240866] Call Trace:
[ 117.240866] [<817de977>] ifx_spi_init+0xbe/0xf0
The root cause is, spi_register_driver() is trying to write into the
passed *const* struct spi_driver.
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
drivers/tty/serial/ifx6x60.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux.orig/drivers/tty/serial/ifx6x60.c 2012-05-24 19:03:07.408430953 +0800
+++ linux/drivers/tty/serial/ifx6x60.c 2012-08-07 12:57:05.499312357 +0800
@@ -1331,7 +1331,7 @@ static const struct spi_device_id ifx_id
MODULE_DEVICE_TABLE(spi, ifx_id_table);
/* spi operations */
-static const struct spi_driver ifx_spi_driver = {
+static struct spi_driver ifx_spi_driver = {
.driver = {
.name = DRVNAME,
.pm = &ifx_spi_pm,
next reply other threads:[~2012-08-07 5:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-07 5:12 Fengguang Wu [this message]
2012-08-07 10:13 ` [PATCH] serial: ifx6x60: fix paging fault on spi_register_driver Alan Cox
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=20120807051247.GA24140@localhost \
--to=fengguang.wu@intel.com \
--cc=alan@linux.intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=russ.gorby@intel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.