svn commit: r360246 - head/sys/dev/acpica

Andriy Gapon avg at FreeBSD.org
Fri Apr 24 09:32:20 UTC 2020


Author: avg
Date: Fri Apr 24 09:32:20 2020
New Revision: 360246
URL: https://svnweb.freebsd.org/changeset/base/360246

Log:
  acpi_video: fix a crash in detach with an LCD output
  
  The crash happened because of a video output object was removed from a
  wrong container, crt_units instead of lcd_units.
  
  MFC after:	1 week

Modified:
  head/sys/dev/acpica/acpi_video.c

Modified: head/sys/dev/acpica/acpi_video.c
==============================================================================
--- head/sys/dev/acpica/acpi_video.c	Fri Apr 24 08:31:31 2020	(r360245)
+++ head/sys/dev/acpica/acpi_video.c	Fri Apr 24 09:32:20 2020	(r360246)
@@ -642,7 +642,10 @@ acpi_video_vo_destroy(struct acpi_video_output *vo)
 
 	switch (vo->adr & DOD_DEVID_MASK) {
 	case DOD_DEVID_MONITOR:
-		voqh = &crt_units;
+		if ((vo->adr & DOD_DEVID_MASK_FULL) == DOD_DEVID_LCD)
+			voqh = &lcd_units;
+		else
+			voqh = &crt_units;
 		break;
 	case DOD_DEVID_TV:
 		voqh = &tv_units;


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