clocksource: arm_arch_timer: Discard unavailable timers correctly
authorSudeep Holla <sudeep.holla@arm.com>
Sun, 28 Sep 2014 23:50:05 +0000 (01:50 +0200)
committerDaniel Lezcano <daniel.lezcano@linaro.org>
Sun, 28 Sep 2014 23:50:05 +0000 (01:50 +0200)
commitc387f07e6205cc13f57c1def5f885bf0a20e1c2d
tree7817a8d82c95bdeda912a9e4611a9d893b7a16b3
parent04f7e3e5134b9517bd9a78a84a9ee0f982d3ebdd
clocksource: arm_arch_timer: Discard unavailable timers correctly

Currently we wait until both cp15 and mem timers are probed if we
have both timer device nodes present in the device tree without
checking if the device is actually available. If one of the timer
device node present is disabled, the system locks up on the boot
as no timer gets registered.

This patch adds the check for the availability of the timer device
so that unavailable timers are discarded correctly. It also adds
the missing of_node_put.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
drivers/clocksource/arm_arch_timer.c