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Fix crash when halting where APM was configured but not enabled
by checking whether APM is active in apm_power_off() and returning if not. (The code was already written with the expectation that this function would return if it fails.)
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=26729
@ -15,7 +15,7 @@
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*
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* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm.c,v 1.57 1997/06/15 02:02:41 wollman Exp $
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* $Id: apm.c,v 1.58 1997/06/15 02:19:40 wollman Exp $
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*/
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#include <sys/param.h>
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@ -231,6 +231,8 @@ apm_power_off(void)
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{
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u_long eax, ebx, ecx;
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if (!apm_softc.active)
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return;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_ALLDEV;
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ecx = PMST_OFF;
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@ -15,7 +15,7 @@
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*
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* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm.c,v 1.57 1997/06/15 02:02:41 wollman Exp $
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* $Id: apm.c,v 1.58 1997/06/15 02:19:40 wollman Exp $
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*/
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#include <sys/param.h>
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@ -231,6 +231,8 @@ apm_power_off(void)
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{
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u_long eax, ebx, ecx;
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if (!apm_softc.active)
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return;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_ALLDEV;
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ecx = PMST_OFF;
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