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authorThomas Gleixner <tglx@linutronix.de>2016-12-15 12:01:05 +0100
committerThomas Gleixner <tglx@linutronix.de>2016-12-15 12:09:20 +0100
commit9bf11ecce5a2758e5a097c2f3a13d08552d0d6f9 (patch)
tree3d6e66b739564b94a05fce5d9076bf48d5de2c4f /kernel
parentf082f02c4731900a5065de69eb0d8cb5aab66196 (diff)
downloadlinux-9bf11ecce5a2758e5a097c2f3a13d08552d0d6f9.tar.bz2
clocksource/dummy_timer: Move hotplug callback after the real timers
When the dummy timer callback is invoked before the real timer callbacks, then it tries to install that timer for the starting CPU. If the platform does not have a broadcast timer installed the installation fails with a kernel crash. The crash happens due to a unconditional deference of the non available broadcast device. This needs to be fixed in the timer core code. But even when this is fixed in the core code then installing the dummy timer before the real timers is a pointless exercise. Move it to the end of the callback list. Fixes: 00c1d17aab51 ("clocksource/dummy_timer: Convert to hotplug state machine") Reported-and-tested-by: Mason <slash.tmp@free.fr> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: Richard Cochran <rcochran@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org>, Cc: Sebastian Frias <sf84@laposte.net> Cc: Thibaud Cornic <thibaud_cornic@sigmadesigns.com> Cc: Robin Murphy <robin.murphy@arm.com> Link: http://lkml.kernel.org/r/1147ef90-7877-e4d2-bb2b-5c4fa8d3144b@free.fr
Diffstat (limited to 'kernel')
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