Messages in this thread | | | Date | Thu, 20 Mar 2014 08:36:34 -0700 | From | Guenter Roeck <> | Subject | Re: [PATCH] mfd: kempld-core: Fix potential hang-up during boot |
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On Thu, Mar 20, 2014 at 03:28:12PM +0000, Lee Jones wrote: > > On PXT and COMe-cPC2 boards it is observed that the hardware > > mutex is acquired but not being released during initialization. > > This can result in a hang-up during boot if the driver is built > > into the kernel. > > > > Releasing the mutex twice if it was acquired fixes the problem. > > Subsequent request/release cycles work as expected, so the fix is > > only needed during initialization. > > > > Reviewed-by: Michael Brunner <michael.brunner@kontron.com> > > Tested-by: Michael Brunner <michael.brunner@kontron.com> > > Signed-off-by: Guenter Roeck <linux@roeck-us.net> > > --- > > drivers/mfd/kempld-core.c | 7 +++++-- > > 1 file changed, 5 insertions(+), 2 deletions(-) > > I was going to stop taking patches for this cycle, but as this looks > like a bugfix I'll apply it, thanks. >
Hi Lee,
Great.
I should have added a note - the patch will also be needed in -stable; the driver is used in both 3.12 and 3.13.
Thanks, Guenter
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