ARM: 7778/1: smp_twd: twd_update_frequency need be run on all online CPUs

commit cbbe6f82b489e7ceba4ad7c833bd3a76cd0084cb upstream.

When the local timer freq changed, the twd_update_frequency function
should be run all the CPUs include itself, otherwise, the twd freq will
not get updated and the local timer will not run correcttly.

smp_call_function will run functions on all other CPUs, but not include
himself, this is not correct,use on_each_cpu instead to fix this issue.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index 90525d9d290b..f6fd1d4398c6 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -120,7 +120,7 @@ static int twd_rate_change(struct notifier_block *nb,
          * changing cpu.
          */
         if (flags == POST_RATE_CHANGE)
-                smp_call_function(twd_update_frequency,
+                on_each_cpu(twd_update_frequency,
                                   (void *)&cnd->new_rate, 1);
 
         return NOTIFY_OK;