* [PATCH] serial: ifx6x60: fix paging fault on spi_register_driver
@ 2012-08-07 5:12 Fengguang Wu
2012-08-07 10:13 ` Alan Cox
0 siblings, 1 reply; 2+ messages in thread
From: Fengguang Wu @ 2012-08-07 5:12 UTC (permalink / raw)
To: Greg Kroah-Hartman; +Cc: Alan Cox, linux-serial, linux-kernel, Russ Gorby
[ 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,
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] serial: ifx6x60: fix paging fault on spi_register_driver
2012-08-07 5:12 [PATCH] serial: ifx6x60: fix paging fault on spi_register_driver Fengguang Wu
@ 2012-08-07 10:13 ` Alan Cox
0 siblings, 0 replies; 2+ messages in thread
From: Alan Cox @ 2012-08-07 10:13 UTC (permalink / raw)
To: Fengguang Wu
Cc: Greg Kroah-Hartman, Alan Cox, linux-serial, linux-kernel,
Russ Gorby
On Tue, 7 Aug 2012 13:12:47 +0800
Fengguang Wu <fengguang.wu@intel.com> wrote:
> [ 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>
Acked-by: Alan Cox <alan@linux.intel.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-08-07 10:09 UTC | newest]
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2012-08-07 5:12 [PATCH] serial: ifx6x60: fix paging fault on spi_register_driver Fengguang Wu
2012-08-07 10:13 ` Alan Cox
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