Messages in this thread Patch in this message | | | Date | Thu, 01 Jan 1970 03:00:02 +0300 | From | Cyrill Gorcunov <> | Subject | [patch 2/2] x86: watchdog - check for CPU is being supported |
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This patch does check if CPU is being recongnized before call the unreserve(). Since enable_lapic_nmi_watchdog() does have such a check the same is make sense here too in a sake of code consistency (but nothing more).
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> ---
Index: linux-2.6.git/arch/x86/kernel/cpu/perfctr-watchdog.c ==================================================================== --- linux-2.6.git.orig/arch/x86/kernel/cpu/perfctr-watchdog.c 2008-06-03 20:48:26.000000000 +0400 +++ linux-2.6.git/arch/x86/kernel/cpu/perfctr-watchdog.c 2008-06-03 21:26:00.000000000 +0400 @@ -181,7 +181,9 @@ void disable_lapic_nmi_watchdog(void) return; on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - wd_ops->unreserve(); + + if (wd_ops) + wd_ops->unreserve(); BUG_ON(atomic_read(&nmi_active) != 0); } --
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