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Groups > linux.kernel > #1667839
| From | Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] ARM/hw_breakpoint: Fix possible recursive locking for arch_hw_breakpoint_init |
| Date | 2017-06-16 17:50 +0200 |
| Message-ID | <tT1Fv-1ZE-5@gated-at.bofh.it> (permalink) |
| References | <tSUNH-5ZK-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2017-06-16 01:22:38 [-0700], Tony Lindgren wrote:
> Recent change to use cpuhp_setup_state_cpuslocked() with commit
> fe2a5cd8aa03 ("ARM/hw_breakpoint: Use cpuhp_setup_state_cpuslocked()")
> missed to change the related paired cpuhp_remove_state_nocalls_cpuslocked().
>
> Now if arch_hw_breakpoint_init() fails, we get "WARNING: possible recursive
> locking detected" on the exit path.
>
> Fixes: fe2a5cd8aa03 ("ARM/hw_breakpoint: Use
> cpuhp_setup_state_cpuslocked()")
> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: Russell King <linux@armlinux.org.uk>
> Cc: linux-arm-kernel@lists.infradead.org
> Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Thank you.
Sebastian
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[PATCH] ARM/hw_breakpoint: Fix possible recursive locking for arch_hw_breakpoint_init Tony Lindgren <tony@atomide.com> - 2017-06-16 10:30 +0200 Re: [PATCH] ARM/hw_breakpoint: Fix possible recursive locking for arch_hw_breakpoint_init Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2017-06-16 17:50 +0200 Re: [PATCH] ARM/hw_breakpoint: Fix possible recursive locking for arch_hw_breakpoint_init Will Deacon <will.deacon@arm.com> - 2017-06-19 17:20 +0200
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