On Saturday, 1 of December 2007, Rafael J. Wysocki wrote:
> On Friday, 30 of November 2007, Jiri Slaby wrote:
> > On 11/30/2007 11:15 PM, Jean Delvare wrote:
> > > Hi Jiri,
> >
[--snip--]
> > >
> > > Should this change go to the stable tree(s) as well?
> >
> > Sorry, I have no idea. Rafael?
>
> Well, actually, having looked once again at the patch, I think that it's
> slightly wrong. Namely, it looks like we just should drop all of the _FROZEN
> actions from there.
>
> Fixed patch follows and I think it's also a candidate for -stable.
Crap, I forgot to add the sign-off, so here it goes again:
---
Subject: HWMON: coretemp, suspend fix
It's not permitted to unregister a device after devices have been suspended.
It causes deadlocks to appear on systems with coretemp hwmon loaded. To avoid
this, we can make coretemp_cpu_callback() do nothing if the _FROZEN bit is set
in action.
Also, in other cases it's generally to late to unregister the coretemp device
if the CPU is already dead, so it should be unregistered on CPU_DOWN_PREPARE.
Signed-off-by: Rafael J. Wysocki <[email protected]> (frozen fix)
Cc: Mark M. Hoffman <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: Andrew Morton <[email protected]>
---
drivers/hwmon/coretemp.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
Index: linux-2.6/drivers/hwmon/coretemp.c
===================================================================
--- linux-2.6.orig/drivers/hwmon/coretemp.c
+++ linux-2.6/drivers/hwmon/coretemp.c
@@ -337,11 +337,10 @@ static int coretemp_cpu_callback(struct
switch (action) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
+ case CPU_DOWN_FAILED:
coretemp_device_add(cpu);
break;
- case CPU_DEAD:
- case CPU_DEAD_FROZEN:
+ case CPU_DOWN_PREPARE:
coretemp_device_remove(cpu);
break;
}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
